331828813 has 8 divisors (see below), whose sum is σ = 339082848. Its totient is φ = 324611664.

The previous prime is 331828801. The next prime is 331828829. The reversal of 331828813 is 318828133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331828813 is a prime.

It is a super-2 number, since 2×331828813² = 220220722273977938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331828313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9370 + ... + 27412.

It is an arithmetic number, because the mean of its divisors is an integer number (42385356).

Almost surely, 2^331828813 is an apocalyptic number.

It is an amenable number.

331828813 is a deficient number, since it is larger than the sum of its proper divisors (7254035).

331828813 is a wasteful number, since it uses less digits than its factorization.

331828813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18443.

The product of its digits is 27648, while the sum is 37.

The square root of 331828813 is about 18216.1689989965. The cubic root of 331828813 is about 692.3165247879.

It can be divided in two parts, 3318 and 28813, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 331828813 in words is "three hundred thirty-one million, eight hundred twenty-eight thousand, eight hundred thirteen".