18316252 has 6 divisors (see below), whose sum is σ = 32053448. Its totient is φ = 9158124.

The previous prime is 18316231. The next prime is 18316253. The reversal of 18316252 is 25261381.

It is a self number, because there is not a number n which added to its sum of digits gives 18316252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18316253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2289528 + ... + 2289535.

Almost surely, 2^18316252 is an apocalyptic number.

It is an amenable number.

18316252 is a deficient number, since it is larger than the sum of its proper divisors (13737196).

18316252 is a wasteful number, since it uses less digits than its factorization.

18316252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579067 (or 4579065 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 18316252 is about 4279.7490580640. The cubic root of 18316252 is about 263.6000793649.

The spelling of 18316252 in words is "eighteen million, three hundred sixteen thousand, two hundred fifty-two".