1379828931 has 24 divisors (see below), whose sum is σ = 2007043920. Its totient is φ = 838229184.

The previous prime is 1379828927. The next prime is 1379828951. The reversal of 1379828931 is 1398289731.

It is not a de Polignac number, because 1379828931 - 2² = 1379828927 is a prime.

It is a super-2 number, since 2×1379828931² = 3807855757649205522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379828911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240565 + ... + 246233.

It is an arithmetic number, because the mean of its divisors is an integer number (83626830).

Almost surely, 2^1379828931 is an apocalyptic number.

1379828931 is a deficient number, since it is larger than the sum of its proper divisors (627214989).

1379828931 is an equidigital number, since it uses as much as digits as its factorization.

1379828931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843 (or 5764 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 1379828931 is about 37146.0486593123. The cubic root of 1379828931 is about 1113.2902754353.

The spelling of 1379828931 in words is "one billion, three hundred seventy-nine million, eight hundred twenty-eight thousand, nine hundred thirty-one".