1317170240 has 28 divisors (see below), whose sum is σ = 3136512396. Its totient is φ = 526867968.

The previous prime is 1317170201. The next prime is 1317170291. The reversal of 1317170240 is 420717131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 753392704 + 563777536 = 27448^2 + 23744^2 .

It is a super-2 number, since 2×1317170240² = 3469874882283315200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2057759 + ... + 2058398.

Almost surely, 2^1317170240 is an apocalyptic number.

1317170240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317170240 is an abundant number, since it is smaller than the sum of its proper divisors (1819342156).

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

1317170240 is an equidigital number, since it uses as much as digits as its factorization.

1317170240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116174 (or 4116164 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1317170240 is about 36292.8400652250. The cubic root of 1317170240 is about 1096.1768766340.

Adding to 1317170240 its reverse (420717131), we get a palindrome (1737887371).

The spelling of 1317170240 in words is "one billion, three hundred seventeen million, one hundred seventy thousand, two hundred forty".