25940728 has 16 divisors (see below), whose sum is σ = 53060760. Its totient is φ = 11791200.

The previous prime is 25940701. The next prime is 25940729. The reversal of 25940728 is 82704952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25940729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147303 + ... + 147478.

Almost surely, 2^25940728 is an apocalyptic number.

It is an amenable number.

25940728 is an abundant number, since it is smaller than the sum of its proper divisors (27120032).

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

25940728 is a wasteful number, since it uses less digits than its factorization.

25940728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294798 (or 294794 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 25940728 is about 5093.2040995821. The cubic root of 25940728 is about 296.0243162395.

The spelling of 25940728 in words is "twenty-five million, nine hundred forty thousand, seven hundred twenty-eight".