25874240 has 56 divisors (see below), whose sum is σ = 70420992. Its totient is φ = 8870400.

The previous prime is 25874213. The next prime is 25874249. The reversal of 25874240 is 4247852.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 25874197 and 25874206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25874249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536 + ... + 8015.

Almost surely, 2^25874240 is an apocalyptic number.

25874240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25874240 is an abundant number, since it is smaller than the sum of its proper divisors (44546752).

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

25874240 is a wasteful number, since it uses less digits than its factorization.

25874240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11575 (or 11565 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 25874240 is about 5086.6727828709. The cubic root of 25874240 is about 295.7711891331.

The spelling of 25874240 in words is "twenty-five million, eight hundred seventy-four thousand, two hundred forty".