331344342 has 48 divisors (see below), whose sum is σ = 823979520. Its totient is φ = 94265136.

The previous prime is 331344301. The next prime is 331344359. The reversal of 331344342 is 243443133.

331344342 is a `hidden beast` number, since 3 + 313 + 4 + 4 + 342 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24613 + ... + 35615.

It is an arithmetic number, because the mean of its divisors is an integer number (17166240).

Almost surely, 2^331344342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331344342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411989760).

331344342 is an abundant number, since it is smaller than the sum of its proper divisors (492635178).

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

331344342 is a wasteful number, since it uses less digits than its factorization.

331344342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11257 (or 11254 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 331344342 is about 18202.8663127542. The cubic root of 331344342 is about 691.9794326586.

Adding to 331344342 its reverse (243443133), we get a palindrome (574787475).

The spelling of 331344342 in words is "three hundred thirty-one million, three hundred forty-four thousand, three hundred forty-two".