25874440 has 32 divisors (see below), whose sum is σ = 59460480. Its totient is φ = 10128832.

The previous prime is 25874437. The next prime is 25874449. The reversal of 25874440 is 4447852.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25874396 and 25874405.

It is not an unprimeable number, because it can be changed into a prime (25874449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5002 + ... + 8761.

It is an arithmetic number, because the mean of its divisors is an integer number (1858140).

Almost surely, 2^25874440 is an apocalyptic number.

25874440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25874440 is an abundant number, since it is smaller than the sum of its proper divisors (33586040).

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

25874440 is a wasteful number, since it uses less digits than its factorization.

25874440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13821 (or 13817 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 25874440 is about 5086.6924420492. The cubic root of 25874440 is about 295.7719512049.

The spelling of 25874440 in words is "twenty-five million, eight hundred seventy-four thousand, four hundred forty".