1379397960 has 48 divisors (see below), whose sum is σ = 4483044540. Its totient is φ = 367839360.

The previous prime is 1379397949. The next prime is 1379397997. The reversal of 1379397960 is 697939731.

It can be written as a sum of positive squares in 2 ways, for example, as 1371813444 + 7584516 = 37038^2 + 2754^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1379397897 and 1379397906.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1915471 + ... + 1916190.

Almost surely, 2^1379397960 is an apocalyptic number.

1379397960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1379397960 is an abundant number, since it is smaller than the sum of its proper divisors (3103646580).

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

1379397960 is a wasteful number, since it uses less digits than its factorization.

1379397960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831678 (or 3831671 counting only the distinct ones).

The product of its (nonzero) digits is 1928934, while the sum is 54.

The square root of 1379397960 is about 37140.2471720370. The cubic root of 1379397960 is about 1113.1743562867.

The spelling of 1379397960 in words is "one billion, three hundred seventy-nine million, three hundred ninety-seven thousand, nine hundred sixty".