331424142 has 48 divisors (see below), whose sum is σ = 772774992. Its totient is φ = 94483200.

The previous prime is 331424123. The next prime is 331424167. The reversal of 331424142 is 241424133.

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, 173392 + ... + 175292.

It is an arithmetic number, because the mean of its divisors is an integer number (16099479).

Almost surely, 2^331424142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331424142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386387496).

331424142 is an abundant number, since it is smaller than the sum of its proper divisors (441350850).

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

331424142 is a wasteful number, since it uses less digits than its factorization.

331424142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2506 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 331424142 is about 18205.0581432744. The cubic root of 331424142 is about 692.0349796322.

Adding to 331424142 its reverse (241424133), we get a palindrome (572848275).

Subtracting from 331424142 its reverse (241424133), we obtain a palindrome (90000009).

The spelling of 331424142 in words is "three hundred thirty-one million, four hundred twenty-four thousand, one hundred forty-two".