331213304 has 8 divisors (see below), whose sum is σ = 621024960. Its totient is φ = 165606648.

The previous prime is 331213297. The next prime is 331213313. The reversal of 331213304 is 403312133.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20700824 + ... + 20700839.

It is an arithmetic number, because the mean of its divisors is an integer number (77628120).

Almost surely, 2^331213304 is an apocalyptic number.

It is an amenable number.

331213304 is a deficient number, since it is larger than the sum of its proper divisors (289811656).

331213304 is a wasteful number, since it uses less digits than its factorization.

331213304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41401669 (or 41401665 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 331213304 is about 18199.2665786289. The cubic root of 331213304 is about 691.8882007232. Note that the first 3 decimals are identical.

Adding to 331213304 its reverse (403312133), we get a palindrome (734525437).

The spelling of 331213304 in words is "three hundred thirty-one million, two hundred thirteen thousand, three hundred four".