328999812 has 48 divisors (see below), whose sum is σ = 797368320. Its totient is φ = 105503392.

The previous prime is 328999777. The next prime is 328999829. The reversal of 328999812 is 218999823.

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, 28333 + ... + 38219.

It is an arithmetic number, because the mean of its divisors is an integer number (16611840).

Almost surely, 2^328999812 is an apocalyptic number.

It is an amenable number.

328999812 is an abundant number, since it is smaller than the sum of its proper divisors (468368508).

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

328999812 is a wasteful number, since it uses less digits than its factorization.

328999812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000 (or 9998 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 328999812 is about 18138.3519648286. The cubic root of 328999812 is about 690.3434626959.

The spelling of 328999812 in words is "three hundred twenty-eight million, nine hundred ninety-nine thousand, eight hundred twelve".