331003332 has 288 divisors, whose sum is σ = 1045699200. Its totient is φ = 87091200.

The previous prime is 331003331. The next prime is 331003367. The reversal of 331003332 is 233300133.

331003332 is a `hidden beast` number, since 331 + 0 + 0 + 3 + 332 = 666.

331003332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (331003331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8073232 + ... + 8073272.

It is an arithmetic number, because the mean of its divisors is an integer number (3630900).

Almost surely, 2^331003332 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 331003332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522849600).

331003332 is an abundant number, since it is smaller than the sum of its proper divisors (714695868).

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

331003332 is a wasteful number, since it uses less digits than its factorization.

331003332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 331003332 is about 18193.4969700715. The cubic root of 331003332 is about 691.7419627775.

Adding to 331003332 its reverse (233300133), we get a palindrome (564303465).

The spelling of 331003332 in words is "three hundred thirty-one million, three thousand, three hundred thirty-two".