331323404 has 12 divisors (see below), whose sum is σ = 613922904. Its totient is φ = 155916864.

The previous prime is 331323401. The next prime is 331323413. The reversal of 331323404 is 404323133.

It is a self number, because there is not a number n which added to its sum of digits gives 331323404.

It is not an unprimeable number, because it can be changed into a prime (331323401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2436134 + ... + 2436269.

It is an arithmetic number, because the mean of its divisors is an integer number (51160242).

Almost surely, 2^331323404 is an apocalyptic number.

331323404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

331323404 is a deficient number, since it is larger than the sum of its proper divisors (282599500).

331323404 is a wasteful number, since it uses less digits than its factorization.

331323404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872424 (or 4872422 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 331323404 is about 18202.2911744648. The cubic root of 331323404 is about 691.9648567137.

Adding to 331323404 its reverse (404323133), we get a palindrome (735646537).

The spelling of 331323404 in words is "three hundred thirty-one million, three hundred twenty-three thousand, four hundred four".