18232685 has 16 divisors (see below), whose sum is σ = 23146560. Its totient is φ = 13749120.

The previous prime is 18232667. The next prime is 18232727. The reversal of 18232685 is 58623281.

It is not a de Polignac number, because 18232685 - 2²⁰ = 17184109 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 26354 + ... + 27036.

It is an arithmetic number, because the mean of its divisors is an integer number (1446660).

Almost surely, 2^18232685 is an apocalyptic number.

It is an amenable number.

18232685 is a deficient number, since it is larger than the sum of its proper divisors (4913875).

18232685 is a wasteful number, since it uses less digits than its factorization.

18232685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its digits is 23040, while the sum is 35.

The square root of 18232685 is about 4269.9748242818. The cubic root of 18232685 is about 263.1985806673.

The spelling of 18232685 in words is "eighteen million, two hundred thirty-two thousand, six hundred eighty-five".