1316263872 has 448 divisors, whose sum is σ = 4681728000. Its totient is φ = 322882560.

The previous prime is 1316263801. The next prime is 1316263891. The reversal of 1316263872 is 2783626131.

It is a tau number, because it is divible by the number of its divisors (448).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1316263872.

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, 16661529 + ... + 16661607.

Almost surely, 2^1316263872 is an apocalyptic number.

1316263872 is a gapful number since it is divisible by the number (12) 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 1316263872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2340864000).

1316263872 is an abundant number, since it is smaller than the sum of its proper divisors (3365464128).

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

1316263872 is a wasteful number, since it uses less digits than its factorization.

1316263872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 125 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 1316263872 is about 36280.3510457107. The cubic root of 1316263872 is about 1095.9253860797.

The spelling of 1316263872 in words is "one billion, three hundred sixteen million, two hundred sixty-three thousand, eight hundred seventy-two".