1317955480 has 16 divisors (see below), whose sum is σ = 2965399920. Its totient is φ = 527182176.

The previous prime is 1317955469. The next prime is 1317955523. The reversal of 1317955480 is 845597131.

It is a congruent number.

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, 16474404 + ... + 16474483.

It is an arithmetic number, because the mean of its divisors is an integer number (185337495).

Almost surely, 2^1317955480 is an apocalyptic number.

1317955480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317955480 is an abundant number, since it is smaller than the sum of its proper divisors (1647444440).

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

1317955480 is a wasteful number, since it uses less digits than its factorization.

1317955480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32948898 (or 32948894 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 1317955480 is about 36303.6565651451. The cubic root of 1317955480 is about 1096.3946644621.

The spelling of 1317955480 in words is "one billion, three hundred seventeen million, nine hundred fifty-five thousand, four hundred eighty".