331707012 has 192 divisors, whose sum is σ = 1018773504. Its totient is φ = 81607680.

The previous prime is 331707001. The next prime is 331707023. The reversal of 331707012 is 210707133.

It is an interprime number because it is at equal distance from previous prime (331707001) and next prime (331707023).

It is a super-2 number, since 2×331707012² = 220059083619936288, which contains 22 as substring.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1180312 + ... + 1180592.

It is an arithmetic number, because the mean of its divisors is an integer number (5306112).

Almost surely, 2^331707012 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 331707012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (509386752).

331707012 is an abundant number, since it is smaller than the sum of its proper divisors (687066492).

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

331707012 is a wasteful number, since it uses less digits than its factorization.

331707012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 331707012 is about 18212.8254809626. The cubic root of 331707012 is about 692.2318072456.

The spelling of 331707012 in words is "three hundred thirty-one million, seven hundred seven thousand, twelve".