331033332 has 96 divisors (see below), whose sum is σ = 904780800. Its totient is φ = 92252160.

The previous prime is 331033331. The next prime is 331033337. The reversal of 331033332 is 233330133.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 331033299 and 331033308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331033331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 737044 + ... + 737492.

It is an arithmetic number, because the mean of its divisors is an integer number (9424800).

Almost surely, 2^331033332 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 331033332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452390400).

331033332 is an abundant number, since it is smaller than the sum of its proper divisors (573747468).

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

331033332 is a wasteful number, since it uses less digits than its factorization.

331033332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 21.

The square root of 331033332 is about 18194.3214218063. The cubic root of 331033332 is about 691.7628604845.

Adding to 331033332 its reverse (233330133), we get a palindrome (564363465).

The spelling of 331033332 in words is "three hundred thirty-one million, thirty-three thousand, three hundred thirty-two".