18685058 has 16 divisors (see below), whose sum is σ = 32103744. Its totient is φ = 7989840.

The previous prime is 18685049. The next prime is 18685067. The reversal of 18685058 is 85058681.

It is an interprime number because it is at equal distance from previous prime (18685049) and next prime (18685067).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6341 + ... + 8807.

It is an arithmetic number, because the mean of its divisors is an integer number (2006484).

Almost surely, 2^18685058 is an apocalyptic number.

18685058 is a deficient number, since it is larger than the sum of its proper divisors (13418686).

18685058 is a wasteful number, since it uses less digits than its factorization.

18685058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017.

The product of its (nonzero) digits is 76800, while the sum is 41.

The square root of 18685058 is about 4322.6216582070. The cubic root of 18685058 is about 265.3575711776.

The spelling of 18685058 in words is "eighteen million, six hundred eighty-five thousand, fifty-eight".