18442032 has 60 divisors (see below), whose sum is σ = 55427256. Its totient is φ = 5268480.

The previous prime is 18442013. The next prime is 18442097. The reversal of 18442032 is 23024481.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 18441993 and 18442011.

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 11 ways as a sum of consecutive naturals, for example, 1569 + ... + 6272.

Almost surely, 2^18442032 is an apocalyptic number.

18442032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18442032 is an abundant number, since it is smaller than the sum of its proper divisors (36985224).

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

18442032 is a wasteful number, since it uses less digits than its factorization.

18442032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866 (or 7853 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 18442032 is about 4294.4187033870. The cubic root of 18442032 is about 264.2020950249.

The spelling of 18442032 in words is "eighteen million, four hundred forty-two thousand, thirty-two".