1313927280 has 120 divisors (see below), whose sum is σ = 4672214352. Its totient is φ = 329766912.

The previous prime is 1313927257. The next prime is 1313927291. The reversal of 1313927280 is 827293131.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41434 + ... + 65913.

Almost surely, 2^1313927280 is an apocalyptic number.

1313927280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313927280 is an abundant number, since it is smaller than the sum of its proper divisors (3358287072).

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

1313927280 is a wasteful number, since it uses less digits than its factorization.

1313927280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107383 (or 107374 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1313927280 is about 36248.1348485684. The cubic root of 1313927280 is about 1095.2765173931.

The spelling of 1313927280 in words is "one billion, three hundred thirteen million, nine hundred twenty-seven thousand, two hundred eighty".