1317024940 has 72 divisors (see below), whose sum is σ = 3509814672. Its totient is φ = 410497920.

The previous prime is 1317024913. The next prime is 1317024949. The reversal of 1317024940 is 494207131.

It is not an unprimeable number, because it can be changed into a prime (1317024949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50307 + ... + 71866.

It is an arithmetic number, because the mean of its divisors is an integer number (48747426).

Almost surely, 2^1317024940 is an apocalyptic number.

1317024940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317024940 is an abundant number, since it is smaller than the sum of its proper divisors (2192789732).

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

1317024940 is a wasteful number, since it uses less digits than its factorization.

1317024940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122207 (or 122198 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1317024940 is about 36290.8382377701. The cubic root of 1317024940 is about 1096.1365679094.

The spelling of 1317024940 in words is "one billion, three hundred seventeen million, twenty-four thousand, nine hundred forty".