39389472 has 36 divisors (see below), whose sum is σ = 112014630. Its totient is φ = 13129728.

The previous prime is 39389447. The next prime is 39389507. The reversal of 39389472 is 27498393.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39388176 + 1296 = 6276^2 + 36^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68097 + ... + 68672.

Almost surely, 2^39389472 is an apocalyptic number.

39389472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39389472 is an abundant number, since it is smaller than the sum of its proper divisors (72625158).

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

39389472 is a wasteful number, since it uses less digits than its factorization.

39389472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136785 (or 136774 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 39389472 is about 6276.1032496287. The cubic root of 39389472 is about 340.2462806166.

The spelling of 39389472 in words is "thirty-nine million, three hundred eighty-nine thousand, four hundred seventy-two".