25938390 has 16 divisors (see below), whose sum is σ = 62252208. Its totient is φ = 6916896.

The previous prime is 25938377. The next prime is 25938391. The reversal of 25938390 is 9383952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25938391) 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, 432277 + ... + 432336.

It is an arithmetic number, because the mean of its divisors is an integer number (3890763).

Almost surely, 2^25938390 is an apocalyptic number.

25938390 is an abundant number, since it is smaller than the sum of its proper divisors (36313818).

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

25938390 is a wasteful number, since it uses less digits than its factorization.

25938390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864623.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 25938390 is about 5092.9745728798. The cubic root of 25938390 is about 296.0154225590.

The spelling of 25938390 in words is "twenty-five million, nine hundred thirty-eight thousand, three hundred ninety".