323384638 has 4 divisors (see below), whose sum is σ = 485076960. Its totient is φ = 161692318.

The previous prime is 323384629. The next prime is 323384651. The reversal of 323384638 is 836483323.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 323384638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80846158 + ... + 80846161.

It is an arithmetic number, because the mean of its divisors is an integer number (121269240).

Almost surely, 2^323384638 is an apocalyptic number.

323384638 is a deficient number, since it is larger than the sum of its proper divisors (161692322).

323384638 is a wasteful number, since it uses less digits than its factorization.

323384638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161692321.

The product of its digits is 248832, while the sum is 40.

The square root of 323384638 is about 17982.8984871739. The cubic root of 323384638 is about 686.3934467215.

The spelling of 323384638 in words is "three hundred twenty-three million, three hundred eighty-four thousand, six hundred thirty-eight".