18367242 has 16 divisors (see below), whose sum is σ = 38895552. Its totient is φ = 5762240.

The previous prime is 18367211. The next prime is 18367267. The reversal of 18367242 is 24276381.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89934 + ... + 90137.

It is an arithmetic number, because the mean of its divisors is an integer number (2430972).

Almost surely, 2^18367242 is an apocalyptic number.

18367242 is an abundant number, since it is smaller than the sum of its proper divisors (20528310).

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

18367242 is a wasteful number, since it uses less digits than its factorization.

18367242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180093.

The product of its digits is 16128, while the sum is 33.

The square root of 18367242 is about 4285.7020428397. The cubic root of 18367242 is about 263.8444618707.

The spelling of 18367242 in words is "eighteen million, three hundred sixty-seven thousand, two hundred forty-two".