25976340 has 144 divisors (see below), whose sum is σ = 89985168. Its totient is φ = 6008832.

The previous prime is 25976333. The next prime is 25976347. The reversal of 25976340 is 4367952.

25976340 is a `hidden beast` number, since 2 + 597 + 63 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (25976333) and next prime (25976347).

It can be written as a sum of positive squares in 8 ways, for example, as 1710864 + 24265476 = 1308^2 + 4926^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 25976295 and 25976304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25976347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39454 + ... + 40106.

It is an arithmetic number, because the mean of its divisors is an integer number (624897).

Almost surely, 2^25976340 is an apocalyptic number.

25976340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25976340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44992584).

25976340 is an abundant number, since it is smaller than the sum of its proper divisors (64008828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25976340 is a wasteful number, since it uses less digits than its factorization.

25976340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 25976340 is about 5096.6989316616. The cubic root of 25976340 is about 296.1597171880.

The spelling of 25976340 in words is "twenty-five million, nine hundred seventy-six thousand, three hundred forty".