3388721872 has 20 divisors (see below), whose sum is σ = 6566611456. Its totient is φ = 1694112480.

The previous prime is 3388721863. The next prime is 3388721893. The reversal of 3388721872 is 2781278833.

It is a super-2 number, since 2×3388721872² = 22966871851542368768, which contains 22 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, 151303 + ... + 172249.

Almost surely, 2^3388721872 is an apocalyptic number.

It is an amenable number.

3388721872 is a deficient number, since it is larger than the sum of its proper divisors (3177889584).

3388721872 is a wasteful number, since it uses less digits than its factorization.

3388721872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31066 (or 31060 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The square root of 3388721872 is about 58212.7294670161. The cubic root of 3388721872 is about 1502.0301210919.

The spelling of 3388721872 in words is "three billion, three hundred eighty-eight million, seven hundred twenty-one thousand, eight hundred seventy-two".