331342232 has 64 divisors (see below), whose sum is σ = 708341760. Its totient is φ = 144144000.

The previous prime is 331342217. The next prime is 331342237. The reversal of 331342232 is 232243133.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 331342198 and 331342207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331342237) 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 15 ways as a sum of consecutive naturals, for example, 168857 + ... + 170807.

It is an arithmetic number, because the mean of its divisors is an integer number (11067840).

Almost surely, 2^331342232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331342232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354170880).

331342232 is an abundant number, since it is smaller than the sum of its proper divisors (376999528).

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

331342232 is a wasteful number, since it uses less digits than its factorization.

331342232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064 (or 2060 counting only the distinct ones).

The product of its digits is 2592, while the sum is 23.

The square root of 331342232 is about 18202.8083547567. The cubic root of 331342232 is about 691.9779638143.

Adding to 331342232 its reverse (232243133), we get a palindrome (563585365).

Subtracting from 331342232 its reverse (232243133), we obtain a palindrome (99099099).

The spelling of 331342232 in words is "three hundred thirty-one million, three hundred forty-two thousand, two hundred thirty-two".