1313574320 has 40 divisors (see below), whose sum is σ = 3125093136. Its totient is φ = 513209088.

The previous prime is 1313574319. The next prime is 1313574349. The reversal of 1313574320 is 234753131.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187487 + ... + 194366.

Almost surely, 2^1313574320 is an apocalyptic number.

1313574320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313574320 is an abundant number, since it is smaller than the sum of its proper divisors (1811518816).

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

1313574320 is a wasteful number, since it uses less digits than its factorization.

1313574320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381909 (or 381903 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 1313574320 is about 36243.2658572596. The cubic root of 1313574320 is about 1095.1784339788.

The spelling of 1313574320 in words is "one billion, three hundred thirteen million, five hundred seventy-four thousand, three hundred twenty".