38689984 has 28 divisors (see below), whose sum is σ = 79256128. Its totient is φ = 18720000.

The previous prime is 38689951. The next prime is 38689997. The reversal of 38689984 is 48998683.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7767 + ... + 11734.

It is an arithmetic number, because the mean of its divisors is an integer number (2830576).

Almost surely, 2^38689984 is an apocalyptic number.

It is an amenable number.

38689984 is an abundant number, since it is smaller than the sum of its proper divisors (40566144).

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

38689984 is a wasteful number, since it uses less digits than its factorization.

38689984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19544 (or 19534 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 55.

The square root of 38689984 is about 6220.1273298864. The cubic root of 38689984 is about 338.2201802903.

The spelling of 38689984 in words is "thirty-eight million, six hundred eighty-nine thousand, nine hundred eighty-four".