18236042 has 32 divisors (see below), whose sum is σ = 31420224. Its totient is φ = 7862400.

The previous prime is 18236017. The next prime is 18236063. The reversal of 18236042 is 24063281.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34742 + ... + 35262.

It is an arithmetic number, because the mean of its divisors is an integer number (981882).

Almost surely, 2^18236042 is an apocalyptic number.

18236042 is a deficient number, since it is larger than the sum of its proper divisors (13184182).

18236042 is a wasteful number, since it uses less digits than its factorization.

18236042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 18236042 is about 4270.3678998419. The cubic root of 18236042 is about 263.2147330408.

The spelling of 18236042 in words is "eighteen million, two hundred thirty-six thousand, forty-two".