331830516 has 48 divisors (see below), whose sum is σ = 817194560. Its totient is φ = 104509440.

The previous prime is 331830493. The next prime is 331830529. The reversal of 331830516 is 615038133.

It is a super-2 number, since 2×331830516² = 220222982697652512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94260 + ... + 97716.

Almost surely, 2^331830516 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 331830516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408597280).

331830516 is an abundant number, since it is smaller than the sum of its proper divisors (485364044).

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

331830516 is a wasteful number, since it uses less digits than its factorization.

331830516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 331830516 is about 18216.2157431229. The cubic root of 331830516 is about 692.3177091466.

Adding to 331830516 its reverse (615038133), we get a palindrome (946868649).

The spelling of 331830516 in words is "three hundred thirty-one million, eight hundred thirty thousand, five hundred sixteen".