18534732 has 48 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 5933632.

The previous prime is 18534727. The next prime is 18534749. The reversal of 18534732 is 23743581.

It is a junction number, because it is equal to n+sod(n) for n = 18534693 and 18534702.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 32998 + ... + 33554.

It is an arithmetic number, because the mean of its divisors is an integer number (937440).

Almost surely, 2^18534732 is an apocalyptic number.

18534732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18534732 is an abundant number, since it is smaller than the sum of its proper divisors (26462388).

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

18534732 is a wasteful number, since it uses less digits than its factorization.

18534732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 668 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 18534732 is about 4305.1982532748. The cubic root of 18534732 is about 264.6440313646.

The spelling of 18534732 in words is "eighteen million, five hundred thirty-four thousand, seven hundred thirty-two".