1239100772 has 48 divisors (see below), whose sum is σ = 2714113920. Its totient is φ = 481876992.

The previous prime is 1239100769. The next prime is 1239100799. The reversal of 1239100772 is 2770019321.

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, 7373 + ... + 50324.

It is an arithmetic number, because the mean of its divisors is an integer number (56544040).

Almost surely, 2^1239100772 is an apocalyptic number.

It is an amenable number.

1239100772 is an abundant number, since it is smaller than the sum of its proper divisors (1475013148).

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

1239100772 is a wasteful number, since it uses less digits than its factorization.

1239100772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57780 (or 57778 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 1239100772 is about 35200.8632280517. The cubic root of 1239100772 is about 1074.0773108823.

The spelling of 1239100772 in words is "one billion, two hundred thirty-nine million, one hundred thousand, seven hundred seventy-two".