323990226 has 64 divisors (see below), whose sum is σ = 826214400. Its totient is φ = 92188368.

The previous prime is 323990201. The next prime is 323990237. The reversal of 323990226 is 622099323.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97785 + ... + 101043.

It is an arithmetic number, because the mean of its divisors is an integer number (12909600).

Almost surely, 2^323990226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323990226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413107200).

323990226 is an abundant number, since it is smaller than the sum of its proper divisors (502224174).

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

323990226 is a wasteful number, since it uses less digits than its factorization.

323990226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 323990226 is about 17999.7284979524. The cubic root of 323990226 is about 686.8216390200.

The spelling of 323990226 in words is "three hundred twenty-three million, nine hundred ninety thousand, two hundred twenty-six".