1379660872 has 16 divisors (see below), whose sum is σ = 2622301740. Its totient is φ = 680380416.

The previous prime is 1379660869. The next prime is 1379660873. The reversal of 1379660872 is 2780669731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1148803236 + 230857636 = 33894^2 + 15194^2 .

It is not an unprimeable number, because it can be changed into a prime (1379660873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180633 + ... + 1181800.

Almost surely, 2^1379660872 is an apocalyptic number.

It is an amenable number.

1379660872 is a deficient number, since it is larger than the sum of its proper divisors (1242640868).

1379660872 is a wasteful number, since it uses less digits than its factorization.

1379660872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362512 (or 2362508 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 1379660872 is about 37143.7864521107. The cubic root of 1379660872 is about 1113.2450751348.

The spelling of 1379660872 in words is "one billion, three hundred seventy-nine million, six hundred sixty thousand, eight hundred seventy-two".