25390368 has 48 divisors (see below), whose sum is σ = 74057760. Its totient is φ = 8463168.

The previous prime is 25390361. The next prime is 25390369. The reversal of 25390368 is 86309352.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25390361) 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, 13830 + ... + 15557.

It is an arithmetic number, because the mean of its divisors is an integer number (1542870).

Almost surely, 2^25390368 is an apocalyptic number.

It is an amenable number.

25390368 is an abundant number, since it is smaller than the sum of its proper divisors (48667392).

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

25390368 is a wasteful number, since it uses less digits than its factorization.

25390368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29406 (or 29392 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 25390368 is about 5038.8855910806. The cubic root of 25390368 is about 293.9158443014.

The spelling of 25390368 in words is "twenty-five million, three hundred ninety thousand, three hundred sixty-eight".