331313432 has 8 divisors (see below), whose sum is σ = 621212700. Its totient is φ = 165656712.

The previous prime is 331313419. The next prime is 331313443. The reversal of 331313432 is 234313133.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 331313398 and 331313407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20707082 + ... + 20707097.

Almost surely, 2^331313432 is an apocalyptic number.

It is an amenable number.

331313432 is a deficient number, since it is larger than the sum of its proper divisors (289899268).

331313432 is a wasteful number, since it uses less digits than its factorization.

331313432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41414185 (or 41414181 counting only the distinct ones).

The product of its digits is 1944, while the sum is 23.

The square root of 331313432 is about 18202.0172508434. The cubic root of 331313432 is about 691.9579145109.

Adding to 331313432 its reverse (234313133), we get a palindrome (565626565).

It can be divided in two parts, 33131 and 3432, that added together give a palindrome (36563).

The spelling of 331313432 in words is "three hundred thirty-one million, three hundred thirteen thousand, four hundred thirty-two".