331032442 has 32 divisors (see below), whose sum is σ = 550967760. Its totient is φ = 148193280.

The previous prime is 331032437. The next prime is 331032463. The reversal of 331032442 is 244230133.

It is a happy number.

331032442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 73462041 + 257570401 = 8571^2 + 16049^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204934 + ... + 206542.

Almost surely, 2^331032442 is an apocalyptic number.

331032442 is a deficient number, since it is larger than the sum of its proper divisors (219935318).

331032442 is a wasteful number, since it uses less digits than its factorization.

331032442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 331032442 is about 18194.2969636092. The cubic root of 331032442 is about 691.7622405374.

Adding to 331032442 its reverse (244230133), we get a palindrome (575262575).

The spelling of 331032442 in words is "three hundred thirty-one million, thirty-two thousand, four hundred forty-two".