1379707972 has 12 divisors (see below), whose sum is σ = 2418955756. Its totient is φ = 688577760.

The previous prime is 1379707963. The next prime is 1379708003. The reversal of 1379707972 is 2797079731.

It can be written as a sum of positive squares in 2 ways, for example, as 771395076 + 608312896 = 27774^2 + 24664^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316623 + ... + 320950.

Almost surely, 2^1379707972 is an apocalyptic number.

It is an amenable number.

1379707972 is a deficient number, since it is larger than the sum of its proper divisors (1039247784).

1379707972 is a wasteful number, since it uses less digits than its factorization.

1379707972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638118 (or 638116 counting only the distinct ones).

The product of its (nonzero) digits is 1166886, while the sum is 52.

The square root of 1379707972 is about 37144.4204692979. The cubic root of 1379707972 is about 1113.2577432833.

It can be divided in two parts, 1 and 379707972, that added together give a palindrome (379707973).

The spelling of 1379707972 in words is "one billion, three hundred seventy-nine million, seven hundred seven thousand, nine hundred seventy-two".