1319387992 has 16 divisors (see below), whose sum is σ = 2664149040. Its totient is φ = 608948256.

The previous prime is 1319387981. The next prime is 1319388023. The reversal of 1319387992 is 2997839131.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

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, 6343108 + ... + 6343315.

It is an arithmetic number, because the mean of its divisors is an integer number (166509315).

Almost surely, 2^1319387992 is an apocalyptic number.

It is an amenable number.

1319387992 is an abundant number, since it is smaller than the sum of its proper divisors (1344761048).

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

1319387992 is a wasteful number, since it uses less digits than its factorization.

1319387992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12686442 (or 12686438 counting only the distinct ones).

The product of its digits is 734832, while the sum is 52.

The square root of 1319387992 is about 36323.3807897888. The cubic root of 1319387992 is about 1096.7917516785.

The spelling of 1319387992 in words is "one billion, three hundred nineteen million, three hundred eighty-seven thousand, nine hundred ninety-two".