331425424 has 40 divisors (see below), whose sum is σ = 716820192. Its totient is φ = 147141120.

The previous prime is 331425397. The next prime is 331425431. The reversal of 331425424 is 424524133.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 331425392 and 331425401.

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 7 ways as a sum of consecutive naturals, for example, 14329 + ... + 29464.

Almost surely, 2^331425424 is an apocalyptic number.

It is an amenable number.

331425424 is an abundant number, since it is smaller than the sum of its proper divisors (385394768).

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

331425424 is a wasteful number, since it uses less digits than its factorization.

331425424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43855 (or 43849 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 331425424 is about 18205.0933532350. The cubic root of 331425424 is about 692.0358719306.

Adding to 331425424 its reverse (424524133), we get a palindrome (755949557).

The spelling of 331425424 in words is "three hundred thirty-one million, four hundred twenty-five thousand, four hundred twenty-four".