1316939520 has 576 divisors, whose sum is σ = 5010776064. Its totient is φ = 291962880.

The previous prime is 1316939513. The next prime is 1316939567. The reversal of 1316939520 is 259396131.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35592942 + ... + 35592978.

It is an arithmetic number, because the mean of its divisors is an integer number (8699264).

Almost surely, 2^1316939520 is an apocalyptic number.

1316939520 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 1316939520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2505388032).

1316939520 is an abundant number, since it is smaller than the sum of its proper divisors (3693836544).

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

1316939520 is a wasteful number, since it uses less digits than its factorization.

1316939520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 1316939520 is about 36289.6613376317. The cubic root of 1316939520 is about 1096.1128695452.

The spelling of 1316939520 in words is "one billion, three hundred sixteen million, nine hundred thirty-nine thousand, five hundred twenty".