39489388 has 6 divisors (see below), whose sum is σ = 69106436. Its totient is φ = 19744692.

The previous prime is 39489377. The next prime is 39489403. The reversal of 39489388 is 88398493.

It is a super-2 number, since 2×39489388² = 3118823529229088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936170 + ... + 4936177.

Almost surely, 2^39489388 is an apocalyptic number.

It is an amenable number.

39489388 is a deficient number, since it is larger than the sum of its proper divisors (29617048).

39489388 is a wasteful number, since it uses less digits than its factorization.

39489388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9872351 (or 9872349 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 39489388 is about 6284.0582428873. The cubic root of 39489388 is about 340.5337291920.

The spelling of 39489388 in words is "thirty-nine million, four hundred eighty-nine thousand, three hundred eighty-eight".