1317534480 has 360 divisors, whose sum is σ = 4831076952. Its totient is φ = 321490944.

The previous prime is 1317534469. The next prime is 1317534481. The reversal of 1317534480 is 844357131.

It is a happy number.

1317534480 is a `hidden beast` number, since 1 + 3 + 175 + 3 + 4 + 480 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 411765264 + 905769216 = 20292^2 + 30096^2 .

It is a tau number, because it is divible by the number of its divisors (360).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317534481) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9616972 + ... + 9617108.

Almost surely, 2^1317534480 is an apocalyptic number.

1317534480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317534480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2415538476).

1317534480 is an abundant number, since it is smaller than the sum of its proper divisors (3513542472).

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

1317534480 is a wasteful number, since it uses less digits than its factorization.

1317534480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1317534480 is about 36297.8577880293. The cubic root of 1317534480 is about 1096.2779100603.

The spelling of 1317534480 in words is "one billion, three hundred seventeen million, five hundred thirty-four thousand, four hundred eighty".