320994228 has 24 divisors (see below), whose sum is σ = 752351488. Its totient is φ = 106517376.

The previous prime is 320994199. The next prime is 320994239. The reversal of 320994228 is 822499023.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57301 + ... + 62652.

Almost surely, 2^320994228 is an apocalyptic number.

It is an amenable number.

320994228 is an abundant number, since it is smaller than the sum of its proper divisors (431357260).

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

320994228 is a wasteful number, since it uses less digits than its factorization.

320994228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120183 (or 120181 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 320994228 is about 17916.3117856327. The cubic root of 320994228 is about 684.6980237859.

The spelling of 320994228 in words is "three hundred twenty million, nine hundred ninety-four thousand, two hundred twenty-eight".