316081332 has 96 divisors (see below), whose sum is σ = 966819840. Its totient is φ = 87389280.

The previous prime is 316081307. The next prime is 316081333. The reversal of 316081332 is 233180613.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 316081296 and 316081305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316081333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16693 + ... + 30179.

It is an arithmetic number, because the mean of its divisors is an integer number (10071040).

Almost surely, 2^316081332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316081332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483409920).

316081332 is an abundant number, since it is smaller than the sum of its proper divisors (650738508).

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

316081332 is a wasteful number, since it uses less digits than its factorization.

316081332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13538 (or 13530 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 316081332 is about 17778.6763286809. The cubic root of 316081332 is about 681.1868919798.

The spelling of 316081332 in words is "three hundred sixteen million, eighty-one thousand, three hundred thirty-two".