18314432 has 14 divisors (see below), whose sum is σ = 36342828. Its totient is φ = 9157184.

The previous prime is 18314419. The next prime is 18314437. The reversal of 18314432 is 23441381.

It is not an unprimeable number, because it can be changed into a prime (18314437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143018 + ... + 143145.

Almost surely, 2^18314432 is an apocalyptic number.

It is an amenable number.

18314432 is a deficient number, since it is larger than the sum of its proper divisors (18028396).

18314432 is an equidigital number, since it uses as much as digits as its factorization.

18314432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286175 (or 286165 counting only the distinct ones).

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

The square root of 18314432 is about 4279.5364234926. The cubic root of 18314432 is about 263.5913481748.

The spelling of 18314432 in words is "eighteen million, three hundred fourteen thousand, four hundred thirty-two".