38639384 has 32 divisors (see below), whose sum is σ = 84823200. Its totient is φ = 16154880.

The previous prime is 38639353. The next prime is 38639389. The reversal of 38639384 is 48393683.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38639389) 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, 6119 + ... + 10710.

It is an arithmetic number, because the mean of its divisors is an integer number (2650725).

Almost surely, 2^38639384 is an apocalyptic number.

It is an amenable number.

38639384 is an abundant number, since it is smaller than the sum of its proper divisors (46183816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38639384 is a wasteful number, since it uses less digits than its factorization.

38639384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16883 (or 16879 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 38639384 is about 6216.0585582827. The cubic root of 38639384 is about 338.0726709050.

The spelling of 38639384 in words is "thirty-eight million, six hundred thirty-nine thousand, three hundred eighty-four".