38693018 has 32 divisors (see below), whose sum is σ = 73906560. Its totient is φ = 14777280.

The previous prime is 38692961. The next prime is 38693027. The reversal of 38693018 is 81039683.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613 + ... + 8943.

It is an arithmetic number, because the mean of its divisors is an integer number (2309580).

Almost surely, 2^38693018 is an apocalyptic number.

38693018 is a deficient number, since it is larger than the sum of its proper divisors (35213542).

38693018 is a wasteful number, since it uses less digits than its factorization.

38693018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7382.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 38693018 is about 6220.3712107880. The cubic root of 38693018 is about 338.2290209350.

The spelling of 38693018 in words is "thirty-eight million, six hundred ninety-three thousand, eighteen".