1313732768 has 24 divisors (see below), whose sum is σ = 2698865568. Its totient is φ = 628306624.

The previous prime is 1313732759. The next prime is 1313732779. The reversal of 1313732768 is 8672373131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891746 + ... + 893217.

It is an arithmetic number, because the mean of its divisors is an integer number (112452732).

Almost surely, 2^1313732768 is an apocalyptic number.

It is an amenable number.

1313732768 is an abundant number, since it is smaller than the sum of its proper divisors (1385132800).

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

1313732768 is a wasteful number, since it uses less digits than its factorization.

1313732768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784996 (or 1784988 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 1313732768 is about 36245.4516870738. The cubic root of 1313732768 is about 1095.2224669792. Note that the first 3 decimals are identical.

The spelling of 1313732768 in words is "one billion, three hundred thirteen million, seven hundred thirty-two thousand, seven hundred sixty-eight".