331431342 has 24 divisors (see below), whose sum is σ = 728602728. Its totient is φ = 100433520.

The previous prime is 331431341. The next prime is 331431407. The reversal of 331431342 is 243134133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331431341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227533 + ... + 228984.

It is an arithmetic number, because the mean of its divisors is an integer number (30358447).

Almost surely, 2^331431342 is an apocalyptic number.

331431342 is an abundant number, since it is smaller than the sum of its proper divisors (397171386).

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

331431342 is a wasteful number, since it uses less digits than its factorization.

331431342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456544 (or 456533 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The square root of 331431342 is about 18205.2558894403. The cubic root of 331431342 is about 692.0399909507.

Adding to 331431342 its reverse (243134133), we get a palindrome (574565475).

The spelling of 331431342 in words is "three hundred thirty-one million, four hundred thirty-one thousand, three hundred forty-two".