18032975 has 6 divisors (see below), whose sum is σ = 22360920. Its totient is φ = 14426360.

The previous prime is 18032969. The next prime is 18033011. The reversal of 18032975 is 57923081.

It is not a de Polignac number, because 18032975 - 2⁸ = 18032719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360635 + ... + 360684.

It is an arithmetic number, because the mean of its divisors is an integer number (3726820).

Almost surely, 2^18032975 is an apocalyptic number.

18032975 is a deficient number, since it is larger than the sum of its proper divisors (4327945).

18032975 is an equidigital number, since it uses as much as digits as its factorization.

18032975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721329 (or 721324 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 18032975 is about 4246.5250499673. The cubic root of 18032975 is about 262.2340768830.

The spelling of 18032975 in words is "eighteen million, thirty-two thousand, nine hundred seventy-five".