38939518 has 16 divisors (see below), whose sum is σ = 60588000. Its totient is φ = 18747232.

The previous prime is 38939513. The next prime is 38939519. The reversal of 38939518 is 81593983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38939513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28863 + ... + 30181.

It is an arithmetic number, because the mean of its divisors is an integer number (3786750).

Almost surely, 2^38939518 is an apocalyptic number.

38939518 is a deficient number, since it is larger than the sum of its proper divisors (21648482).

38939518 is a wasteful number, since it uses less digits than its factorization.

38939518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859.

The product of its digits is 233280, while the sum is 46.

The square root of 38939518 is about 6240.1536840049. The cubic root of 38939518 is about 338.9457482586.

The spelling of 38939518 in words is "thirty-eight million, nine hundred thirty-nine thousand, five hundred eighteen".