331412432 has 20 divisors (see below), whose sum is σ = 691505220. Its totient is φ = 152959488.

The previous prime is 331412423. The next prime is 331412437. The reversal of 331412432 is 234214133.

It can be written as a sum of positive squares in 2 ways, for example, as 19678096 + 311734336 = 4436^2 + 17656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331412398 and 331412407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331412437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796457 + ... + 796872.

It is an arithmetic number, because the mean of its divisors is an integer number (34575261).

Almost surely, 2^331412432 is an apocalyptic number.

It is an amenable number.

331412432 is an abundant number, since it is smaller than the sum of its proper divisors (360092788).

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

331412432 is a wasteful number, since it uses less digits than its factorization.

331412432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593350 (or 1593344 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 331412432 is about 18204.7365265197. The cubic root of 331412432 is about 692.0268291245.

Adding to 331412432 its reverse (234214133), we get a palindrome (565626565).

The spelling of 331412432 in words is "three hundred thirty-one million, four hundred twelve thousand, four hundred thirty-two".