1388220876 has 48 divisors (see below), whose sum is σ = 4113249280. Its totient is φ = 396634320.

The previous prime is 1388220851. The next prime is 1388220881. The reversal of 1388220876 is 6780228831.

1388220876 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 917380 + ... + 918891.

Almost surely, 2^1388220876 is an apocalyptic number.

It is an amenable number.

1388220876 is an abundant number, since it is smaller than the sum of its proper divisors (2725028404).

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

1388220876 is a wasteful number, since it uses less digits than its factorization.

1388220876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836291 (or 1836283 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1388220876 is about 37258.8362137091. The cubic root of 1388220876 is about 1115.5426788491.

The spelling of 1388220876 in words is "one billion, three hundred eighty-eight million, two hundred twenty thousand, eight hundred seventy-six".