331533042 has 32 divisors (see below), whose sum is σ = 672924672. Its totient is φ = 108875664.

The previous prime is 331533023. The next prime is 331533047. The reversal of 331533042 is 240335133.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (331533047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241843 + ... + 243209.

It is an arithmetic number, because the mean of its divisors is an integer number (21028896).

Almost surely, 2^331533042 is an apocalyptic number.

331533042 is an abundant number, since it is smaller than the sum of its proper divisors (341391630).

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

331533042 is a wasteful number, since it uses less digits than its factorization.

331533042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 331533042 is about 18208.0488246270. The cubic root of 331533042 is about 692.1107680726.

Adding to 331533042 its reverse (240335133), we get a palindrome (571868175).

The spelling of 331533042 in words is "three hundred thirty-one million, five hundred thirty-three thousand, forty-two".