25896440 has 32 divisors (see below), whose sum is σ = 61696080. Its totient is φ = 9748992.

The previous prime is 25896427. The next prime is 25896463. The reversal of 25896440 is 4469852.

It is a junction number, because it is equal to n+sod(n) for n = 25896394 and 25896403.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18362 + ... + 19721.

Almost surely, 2^25896440 is an apocalyptic number.

25896440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25896440 is an abundant number, since it is smaller than the sum of its proper divisors (35799640).

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

25896440 is a wasteful number, since it uses less digits than its factorization.

25896440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38111 (or 38107 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 25896440 is about 5088.8544879963. The cubic root of 25896440 is about 295.8557551389.

The spelling of 25896440 in words is "twenty-five million, eight hundred ninety-six thousand, four hundred forty".