18233252 has 12 divisors (see below), whose sum is σ = 32267340. Its totient is φ = 9014016.

The previous prime is 18233249. The next prime is 18233261. The reversal of 18233252 is 25233281.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 13498276 = 2176^2 + 3674^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25253 + ... + 25964.

It is an arithmetic number, because the mean of its divisors is an integer number (2688945).

Almost surely, 2^18233252 is an apocalyptic number.

It is an amenable number.

18233252 is a deficient number, since it is larger than the sum of its proper divisors (14034088).

18233252 is a wasteful number, since it uses less digits than its factorization.

18233252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51310 (or 51308 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 18233252 is about 4270.0412175997. The cubic root of 18233252 is about 263.2013089553.

The spelling of 18233252 in words is "eighteen million, two hundred thirty-three thousand, two hundred fifty-two".