1313888860 has 48 divisors (see below), whose sum is σ = 2930395104. Its totient is φ = 493129728.

The previous prime is 1313888831. The next prime is 1313888879. The reversal of 1313888860 is 688883131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313888860.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108847 + ... + 120313.

It is an arithmetic number, because the mean of its divisors is an integer number (61049898).

Almost surely, 2^1313888860 is an apocalyptic number.

1313888860 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 1313888860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465197552).

1313888860 is an abundant number, since it is smaller than the sum of its proper divisors (1616506244).

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

1313888860 is a wasteful number, since it uses less digits than its factorization.

1313888860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11830 (or 11828 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 1313888860 is about 36247.6048863921. The cubic root of 1313888860 is about 1095.2658417809.

The spelling of 1313888860 in words is "one billion, three hundred thirteen million, eight hundred eighty-eight thousand, eight hundred sixty".