1315686480 has 240 divisors, whose sum is σ = 4380927936. Its totient is φ = 326430720.

The previous prime is 1315686443. The next prime is 1315686497. The reversal of 1315686480 is 846865131.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5459160 + ... + 5459400.

Almost surely, 2^1315686480 is an apocalyptic number.

1315686480 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 1315686480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2190463968).

1315686480 is an abundant number, since it is smaller than the sum of its proper divisors (3065241456).

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

1315686480 is a wasteful number, since it uses less digits than its factorization.

1315686480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1315686480 is about 36272.3928077539. The cubic root of 1315686480 is about 1095.7651165189.

The spelling of 1315686480 in words is "one billion, three hundred fifteen million, six hundred eighty-six thousand, four hundred eighty".