331888752 has 100 divisors (see below), whose sum is σ = 1034525800. Its totient is φ = 102114432.

The previous prime is 331888729. The next prime is 331888757. The reversal of 331888752 is 257888133.

It is a super-2 number, since 2×331888752² = 220300287408235008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331888698 and 331888707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331888757) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6999 + ... + 26697.

It is an arithmetic number, because the mean of its divisors is an integer number (10345258).

Almost surely, 2^331888752 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 331888752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517262900).

331888752 is an abundant number, since it is smaller than the sum of its proper divisors (702637048).

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

331888752 is a wasteful number, since it uses less digits than its factorization.

331888752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732 (or 19717 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 331888752 is about 18217.8141389136. The cubic root of 331888752 is about 692.3582071858.

The spelling of 331888752 in words is "three hundred thirty-one million, eight hundred eighty-eight thousand, seven hundred fifty-two".