388796881 has 16 divisors (see below), whose sum is σ = 443064960. Its totient is φ = 337921920.

The previous prime is 388796879. The next prime is 388796893. The reversal of 388796881 is 188697883.

It is not a de Polignac number, because 388796881 - 2¹ = 388796879 is a prime.

It is a super-2 number, since 2×388796881² = 302326029350656322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388796801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26941 + ... + 38773.

It is an arithmetic number, because the mean of its divisors is an integer number (27691560).

Almost surely, 2^388796881 is an apocalyptic number.

It is an amenable number.

388796881 is a deficient number, since it is larger than the sum of its proper divisors (54268079).

388796881 is a wasteful number, since it uses less digits than its factorization.

388796881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11976.

The product of its digits is 4644864, while the sum is 58.

The square root of 388796881 is about 19717.9329799044. The cubic root of 388796881 is about 729.8622877776.

The spelling of 388796881 in words is "three hundred eighty-eight million, seven hundred ninety-six thousand, eight hundred eighty-one".