331115442 has 96 divisors (see below), whose sum is σ = 805752000. Its totient is φ = 90357120.

The previous prime is 331115441. The next prime is 331115461. The reversal of 331115442 is 244511133.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (331115441) 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 47 ways as a sum of consecutive naturals, for example, 663309 + ... + 663807.

It is an arithmetic number, because the mean of its divisors is an integer number (8393250).

Almost surely, 2^331115442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331115442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402876000).

331115442 is an abundant number, since it is smaller than the sum of its proper divisors (474636558).

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

331115442 is a wasteful number, since it uses less digits than its factorization.

331115442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 609 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 331115442 is about 18196.5777551714. The cubic root of 331115442 is about 691.8200510525.

Adding to 331115442 its reverse (244511133), we get a palindrome (575626575).

The spelling of 331115442 in words is "three hundred thirty-one million, one hundred fifteen thousand, four hundred forty-two".