331325442 has 48 divisors (see below), whose sum is σ = 856103040. Its totient is φ = 90547776.

The previous prime is 331325437. The next prime is 331325443. The reversal of 331325442 is 244523133.

331325442 is a `hidden beast` number, since 331 + 325 + 4 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (331325443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54267 + ... + 60062.

It is an arithmetic number, because the mean of its divisors is an integer number (17835480).

Almost surely, 2^331325442 is an apocalyptic number.

331325442 is an abundant number, since it is smaller than the sum of its proper divisors (524777598).

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

331325442 is a wasteful number, since it uses less digits than its factorization.

331325442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114367 (or 114364 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 331325442 is about 18202.3471563422. The cubic root of 331325442 is about 691.9662754901.

Adding to 331325442 its reverse (244523133), we get a palindrome (575848575).

The spelling of 331325442 in words is "three hundred thirty-one million, three hundred twenty-five thousand, four hundred forty-two".