1379493988 has 12 divisors (see below), whose sum is σ = 2414966400. Its totient is φ = 689503592.

The previous prime is 1379493967. The next prime is 1379494007. The reversal of 1379493988 is 8893949731.

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, 47788 + ... + 71011.

It is an arithmetic number, because the mean of its divisors is an integer number (201247200).

Almost surely, 2^1379493988 is an apocalyptic number.

It is an amenable number.

1379493988 is a deficient number, since it is larger than the sum of its proper divisors (1035472412).

1379493988 is a wasteful number, since it uses less digits than its factorization.

1379493988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121706 (or 121704 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 61.

The square root of 1379493988 is about 37141.5399249950. The cubic root of 1379493988 is about 1113.2001872240.

The spelling of 1379493988 in words is "one billion, three hundred seventy-nine million, four hundred ninety-three thousand, nine hundred eighty-eight".