25738040 has 32 divisors (see below), whose sum is σ = 58272480. Its totient is φ = 10230912.

The previous prime is 25738039. The next prime is 25738057. The reversal of 25738040 is 4083752.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25737994 and 25738012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4754 + ... + 8606.

It is an arithmetic number, because the mean of its divisors is an integer number (1821015).

Almost surely, 2^25738040 is an apocalyptic number.

25738040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25738040 is an abundant number, since it is smaller than the sum of its proper divisors (32534440).

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

25738040 is a wasteful number, since it uses less digits than its factorization.

25738040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 25738040 is about 5073.2671918597. The cubic root of 25738040 is about 295.2513036226.

The spelling of 25738040 in words is "twenty-five million, seven hundred thirty-eight thousand, forty".