331343432 has 64 divisors (see below), whose sum is σ = 754512000. Its totient is φ = 133249536.

The previous prime is 331343417. The next prime is 331343437. The reversal of 331343432 is 234343133.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (331343437) 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, 114548 + ... + 117404.

It is an arithmetic number, because the mean of its divisors is an integer number (11789250).

Almost surely, 2^331343432 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 331343432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377256000).

331343432 is an abundant number, since it is smaller than the sum of its proper divisors (423168568).

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

331343432 is a wasteful number, since it uses less digits than its factorization.

331343432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998 (or 2994 counting only the distinct ones).

The product of its digits is 7776, while the sum is 26.

The square root of 331343432 is about 18202.8413166736. The cubic root of 331343432 is about 691.9787991767.

Adding to 331343432 its reverse (234343133), we get a palindrome (565686565).

The spelling of 331343432 in words is "three hundred thirty-one million, three hundred forty-three thousand, four hundred thirty-two".