25979460 has 96 divisors (see below), whose sum is σ = 82508160. Its totient is φ = 6054912.

The previous prime is 25979453. The next prime is 25979461. The reversal of 25979460 is 6497952.

It is a super-3 number, since 3×25979460³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25979461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13944 + ... + 15696.

It is an arithmetic number, because the mean of its divisors is an integer number (859460).

Almost surely, 2^25979460 is an apocalyptic number.

25979460 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 25979460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41254080).

25979460 is an abundant number, since it is smaller than the sum of its proper divisors (56528700).

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

25979460 is a wasteful number, since it uses less digits than its factorization.

25979460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 25979460 is about 5097.0050029405. The cubic root of 25979460 is about 296.1715738920.

The spelling of 25979460 in words is "twenty-five million, nine hundred seventy-nine thousand, four hundred sixty".