331342242 has 32 divisors (see below), whose sum is σ = 826205184. Its totient is φ = 86062800.

The previous prime is 331342237. The next prime is 331342243. The reversal of 331342242 is 242243133.

It is not an unprimeable number, because it can be changed into a prime (331342243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358134 + ... + 359057.

It is an arithmetic number, because the mean of its divisors is an integer number (25818912).

Almost surely, 2^331342242 is an apocalyptic number.

331342242 is an abundant number, since it is smaller than the sum of its proper divisors (494862942).

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

331342242 is a wasteful number, since it uses less digits than its factorization.

331342242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717214.

The product of its digits is 3456, while the sum is 24.

The square root of 331342242 is about 18202.8086294396. The cubic root of 331342242 is about 691.9779707757.

Adding to 331342242 its reverse (242243133), we get a palindrome (573585375).

The spelling of 331342242 in words is "three hundred thirty-one million, three hundred forty-two thousand, two hundred forty-two".