18086252 has 12 divisors (see below), whose sum is σ = 33316920. Its totient is φ = 8567136.

The previous prime is 18086251. The next prime is 18086279. The reversal of 18086252 is 25268081.

It is a super-2 number, since 2×18086252² = 654225022815008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18086251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118913 + ... + 119064.

It is an arithmetic number, because the mean of its divisors is an integer number (2776410).

Almost surely, 2^18086252 is an apocalyptic number.

It is an amenable number.

18086252 is a deficient number, since it is larger than the sum of its proper divisors (15230668).

18086252 is a wasteful number, since it uses less digits than its factorization.

18086252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238000 (or 237998 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 18086252 is about 4252.7934349084. The cubic root of 18086252 is about 262.4920729277.

The spelling of 18086252 in words is "eighteen million, eighty-six thousand, two hundred fifty-two".