18442252 has 12 divisors (see below), whose sum is σ = 32803456. Its totient is φ = 9069840.

The previous prime is 18442247. The next prime is 18442337. The reversal of 18442252 is 25224481.

It is a self number, because there is not a number n which added to its sum of digits gives 18442252.

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, 37548 + ... + 38035.

Almost surely, 2^18442252 is an apocalyptic number.

It is an amenable number.

18442252 is a deficient number, since it is larger than the sum of its proper divisors (14361204).

18442252 is a wasteful number, since it uses less digits than its factorization.

18442252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75648 (or 75646 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 18442252 is about 4294.4443179531. Note that the first 3 decimals coincide. The cubic root of 18442252 is about 264.2031456002.

It can be divided in two parts, 1844 and 2252, that added together give a 12-th power (4096 = 2¹²).

The spelling of 18442252 in words is "eighteen million, four hundred forty-two thousand, two hundred fifty-two".