1319994792 has 40 divisors (see below), whose sum is σ = 3697209450. Its totient is φ = 439998048.

The previous prime is 1319994791. The next prime is 1319994821. The reversal of 1319994792 is 2974999131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 761428836 + 558565956 = 27594^2 + 23634^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1319994791) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1017867 + ... + 1019162.

Almost surely, 2^1319994792 is an apocalyptic number.

1319994792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1319994792 is an abundant number, since it is smaller than the sum of its proper divisors (2377214658).

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

1319994792 is a wasteful number, since it uses less digits than its factorization.

1319994792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037047 (or 2037034 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The square root of 1319994792 is about 36331.7325763581. The cubic root of 1319994792 is about 1096.9598678143.

The spelling of 1319994792 in words is "one billion, three hundred nineteen million, nine hundred ninety-four thousand, seven hundred ninety-two".