1317032880 has 80 divisors (see below), whose sum is σ = 4297701120. Its totient is φ = 332722944.

The previous prime is 1317032879. The next prime is 1317032887. The reversal of 1317032880 is 882307131.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1317032887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139852 + ... + 148971.

It is an arithmetic number, because the mean of its divisors is an integer number (53721264).

Almost surely, 2^1317032880 is an apocalyptic number.

1317032880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317032880 is an abundant number, since it is smaller than the sum of its proper divisors (2980668240).

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

1317032880 is a wasteful number, since it uses less digits than its factorization.

1317032880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288858 (or 288852 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1317032880 is about 36290.9476316064. The cubic root of 1317032880 is about 1096.1387706789.

The spelling of 1317032880 in words is "one billion, three hundred seventeen million, thirty-two thousand, eight hundred eighty".