18561032 has 16 divisors (see below), whose sum is σ = 39773760. Its totient is φ = 7954704.

The previous prime is 18561029. The next prime is 18561083. The reversal of 18561032 is 23016581.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 18560992 and 18561010.

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, 165668 + ... + 165779.

It is an arithmetic number, because the mean of its divisors is an integer number (2485860).

Almost surely, 2^18561032 is an apocalyptic number.

It is an amenable number.

18561032 is an abundant number, since it is smaller than the sum of its proper divisors (21212728).

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

18561032 is a wasteful number, since it uses less digits than its factorization.

18561032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331460 (or 331456 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 18561032 is about 4308.2516175358. The cubic root of 18561032 is about 264.7691450983.

The spelling of 18561032 in words is "eighteen million, five hundred sixty-one thousand, thirty-two".