38866384 has 20 divisors (see below), whose sum is σ = 76726116. Its totient is φ = 19066112.

The previous prime is 38866379. The next prime is 38866393. The reversal of 38866384 is 48366883.

It can be written as a sum of positive squares in 2 ways, for example, as 26419600 + 12446784 = 5140^2 + 3528^2 .

It is a super-3 number, since 3×38866384³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22069 + ... + 23764.

Almost surely, 2^38866384 is an apocalyptic number.

It is an amenable number.

38866384 is a deficient number, since it is larger than the sum of its proper divisors (37859732).

38866384 is a wasteful number, since it uses less digits than its factorization.

38866384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45894 (or 45888 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 38866384 is about 6234.2909781306. The cubic root of 38866384 is about 338.7334190311.

The spelling of 38866384 in words is "thirty-eight million, eight hundred sixty-six thousand, three hundred eighty-four".