331424404 has 12 divisors (see below), whose sum is σ = 583346484. Its totient is φ = 164753984.

The previous prime is 331424399. The next prime is 331424437. The reversal of 331424404 is 404424133.

It can be written as a sum of positive squares in 2 ways, for example, as 185014404 + 146410000 = 13602^2 + 12100^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238777 + ... + 240160.

It is an arithmetic number, because the mean of its divisors is an integer number (48612207).

Almost surely, 2^331424404 is an apocalyptic number.

It is an amenable number.

331424404 is a deficient number, since it is larger than the sum of its proper divisors (251922080).

331424404 is a wasteful number, since it uses less digits than its factorization.

331424404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479114 (or 479112 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 331424404 is about 18205.0653390753. The cubic root of 331424404 is about 692.0351619898.

Adding to 331424404 its reverse (404424133), we get a palindrome (735848537).

The spelling of 331424404 in words is "three hundred thirty-one million, four hundred twenty-four thousand, four hundred four".