331745868 has 60 divisors (see below), whose sum is σ = 883658160. Its totient is φ = 108489888.

The previous prime is 331745857. The next prime is 331745873. The reversal of 331745868 is 868547133.

It is a super-2 number, since 2×331745868² = 220110641870146848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7513 + ... + 26831.

It is an arithmetic number, because the mean of its divisors is an integer number (14727636).

Almost surely, 2^331745868 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 331745868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441829080).

331745868 is an abundant number, since it is smaller than the sum of its proper divisors (551912292).

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

331745868 is a wasteful number, since it uses less digits than its factorization.

331745868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19388 (or 19377 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 331745868 is about 18213.8921705384. The cubic root of 331745868 is about 692.2588354240.

The spelling of 331745868 in words is "three hundred thirty-one million, seven hundred forty-five thousand, eight hundred sixty-eight".