18103332 has 24 divisors (see below), whose sum is σ = 45490816. Its totient is φ = 5570208.

The previous prime is 18103331. The next prime is 18103357. The reversal of 18103332 is 23330181.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18103299 and 18103308.

It is not an unprimeable number, because it can be changed into a prime (18103331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57868 + ... + 58179.

Almost surely, 2^18103332 is an apocalyptic number.

18103332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18103332 is an abundant number, since it is smaller than the sum of its proper divisors (27387484).

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

18103332 is a wasteful number, since it uses less digits than its factorization.

18103332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116067 (or 116065 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 18103332 is about 4254.8010529283. The cubic root of 18103332 is about 262.5746762597.

The spelling of 18103332 in words is "eighteen million, one hundred three thousand, three hundred thirty-two".