1399790799 has 72 divisors (see below), whose sum is σ = 2305766736. Its totient is φ = 817132800.

The previous prime is 1399790783. The next prime is 1399790803. The reversal of 1399790799 is 9970979931.

It is not a de Polignac number, because 1399790799 - 2⁴ = 1399790783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399790759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4777297 + ... + 4777589.

It is an arithmetic number, because the mean of its divisors is an integer number (32024538).

Almost surely, 2^1399790799 is an apocalyptic number.

1399790799 is a deficient number, since it is larger than the sum of its proper divisors (905975937).

1399790799 is a wasteful number, since it uses less digits than its factorization.

1399790799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 8680203, while the sum is 63.

The square root of 1399790799 is about 37413.7781973433. The cubic root of 1399790799 is about 1118.6332176758.

The spelling of 1399790799 in words is "one billion, three hundred ninety-nine million, seven hundred ninety thousand, seven hundred ninety-nine".