1307904399 has 6 divisors (see below), whose sum is σ = 1889195256. Its totient is φ = 871936260.

The previous prime is 1307904347. The next prime is 1307904413. The reversal of 1307904399 is 9934097031.

It is not a de Polignac number, because 1307904399 - 2⁹ = 1307903887 is a prime.

It is a super-2 number, since 2×1307904399² = 3421227833847102402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307904319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72661347 + ... + 72661364.

It is an arithmetic number, because the mean of its divisors is an integer number (314865876).

Almost surely, 2^1307904399 is an apocalyptic number.

1307904399 is a deficient number, since it is larger than the sum of its proper divisors (581290857).

1307904399 is a wasteful number, since it uses less digits than its factorization.

1307904399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145322717 (or 145322714 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 1307904399 is about 36164.9609290540. The cubic root of 1307904399 is about 1093.6004161628.

The spelling of 1307904399 in words is "one billion, three hundred seven million, nine hundred four thousand, three hundred ninety-nine".