25140738 has 32 divisors (see below), whose sum is σ = 59448960. Its totient is φ = 6935040.

The previous prime is 25140737. The next prime is 25140761. The reversal of 25140738 is 83704152.

It is not an unprimeable number, because it can be changed into a prime (25140737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9103 + ... + 11538.

It is an arithmetic number, because the mean of its divisors is an integer number (1857780).

Almost surely, 2^25140738 is an apocalyptic number.

25140738 is an abundant number, since it is smaller than the sum of its proper divisors (34308222).

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

25140738 is a wasteful number, since it uses less digits than its factorization.

25140738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20682.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 25140738 is about 5014.0540483724. The cubic root of 25140738 is about 292.9494412796.

It can be divided in two parts, 25140 and 738, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 25140738 in words is "twenty-five million, one hundred forty thousand, seven hundred thirty-eight".