25871340 has 48 divisors (see below), whose sum is σ = 79027200. Its totient is φ = 6271680.

The previous prime is 25871327. The next prime is 25871341. The reversal of 25871340 is 4317852.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 25871298 and 25871307.

It is not an unprimeable number, because it can be changed into a prime (25871341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18940 + ... + 20259.

It is an arithmetic number, because the mean of its divisors is an integer number (1646400).

Almost surely, 2^25871340 is an apocalyptic number.

25871340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25871340 is an abundant number, since it is smaller than the sum of its proper divisors (53155860).

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

25871340 is a wasteful number, since it uses less digits than its factorization.

25871340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39222 (or 39220 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 25871340 is about 5086.3877162481. The cubic root of 25871340 is about 295.7601386508.

The spelling of 25871340 in words is "twenty-five million, eight hundred seventy-one thousand, three hundred forty".