18432836 has 12 divisors (see below), whose sum is σ = 32944128. Its totient is φ = 9020232.

The previous prime is 18432829. The next prime is 18432847. The reversal of 18432836 is 63823481.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18432796 and 18432805.

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, 48836 + ... + 49211.

It is an arithmetic number, because the mean of its divisors is an integer number (2745344).

Almost surely, 2^18432836 is an apocalyptic number.

It is an amenable number.

18432836 is a deficient number, since it is larger than the sum of its proper divisors (14511292).

18432836 is a wasteful number, since it uses less digits than its factorization.

18432836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98098 (or 98096 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 18432836 is about 4293.3478778222. The cubic root of 18432836 is about 264.1581735016.

The spelling of 18432836 in words is "eighteen million, four hundred thirty-two thousand, eight hundred thirty-six".