331330332 has 24 divisors (see below), whose sum is σ = 774861696. Its totient is φ = 110192368.

The previous prime is 331330331. The next prime is 331330339. The reversal of 331330332 is 233033133.

It is a junction number, because it is equal to n+sod(n) for n = 331330299 and 331330308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331330331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25848 + ... + 36479.

It is an arithmetic number, because the mean of its divisors is an integer number (32285904).

Almost surely, 2^331330332 is an apocalyptic number.

It is an amenable number.

331330332 is an abundant number, since it is smaller than the sum of its proper divisors (443531364).

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

331330332 is a wasteful number, since it uses less digits than its factorization.

331330332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62777 (or 62775 counting only the distinct ones).

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

The square root of 331330332 is about 18202.4814791830. The cubic root of 331330332 is about 691.9696796944.

Adding to 331330332 its reverse (233033133), we get a palindrome (564363465).

The spelling of 331330332 in words is "three hundred thirty-one million, three hundred thirty thousand, three hundred thirty-two".