18957252 has 48 divisors (see below), whose sum is σ = 46230912. Its totient is φ = 6040320.

The previous prime is 18957251. The next prime is 18957259. The reversal of 18957252 is 25275981.

It is a self number, because there is not a number n which added to its sum of digits gives 18957252.

It is not an unprimeable number, because it can be changed into a prime (18957251) 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, 25713 + ... + 26439.

It is an arithmetic number, because the mean of its divisors is an integer number (963144).

Almost surely, 2^18957252 is an apocalyptic number.

18957252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18957252 is an abundant number, since it is smaller than the sum of its proper divisors (27273660).

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

18957252 is a wasteful number, since it uses less digits than its factorization.

18957252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 18957252 is about 4353.9926504302. The cubic root of 18957252 is about 266.6398938399.

The spelling of 18957252 in words is "eighteen million, nine hundred fifty-seven thousand, two hundred fifty-two".