18080632 has 16 divisors (see below), whose sum is σ = 34541640. Its totient is φ = 8869536.

The previous prime is 18080627. The next prime is 18080641. The reversal of 18080632 is 23608081.

It is a self number, because there is not a number n which added to its sum of digits gives 18080632.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20898 + ... + 21745.

Almost surely, 2^18080632 is an apocalyptic number.

It is an amenable number.

18080632 is a deficient number, since it is larger than the sum of its proper divisors (16461008).

18080632 is a wasteful number, since it uses less digits than its factorization.

18080632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42702 (or 42698 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 18080632 is about 4252.1326413930. The cubic root of 18080632 is about 262.4648817721.

The spelling of 18080632 in words is "eighteen million, eighty thousand, six hundred thirty-two".