18056632 has 32 divisors (see below), whose sum is σ = 38131200. Its totient is φ = 7941600.

The previous prime is 18056617. The next prime is 18056653. The reversal of 18056632 is 23665081.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 18056594 and 18056603.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 582 + ... + 6037.

It is an arithmetic number, because the mean of its divisors is an integer number (1191600).

Almost surely, 2^18056632 is an apocalyptic number.

It is an amenable number.

18056632 is an abundant number, since it is smaller than the sum of its proper divisors (20074568).

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

18056632 is a wasteful number, since it uses less digits than its factorization.

18056632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667 (or 6663 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 18056632 is about 4249.3095909806. The cubic root of 18056632 is about 262.3486995066.

The spelling of 18056632 in words is "eighteen million, fifty-six thousand, six hundred thirty-two".