326399808 has 112 divisors (see below), whose sum is σ = 1029980160. Its totient is φ = 89193984.

The previous prime is 326399791. The next prime is 326399833. The reversal of 326399808 is 808993623.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 25633 + ... + 36191.

Almost surely, 2^326399808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326399808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514990080).

326399808 is an abundant number, since it is smaller than the sum of its proper divisors (703580352).

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

326399808 is a wasteful number, since it uses less digits than its factorization.

326399808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10604 (or 10594 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 326399808 is about 18066.5383513278. The cubic root of 326399808 is about 688.5201132865.

The spelling of 326399808 in words is "three hundred twenty-six million, three hundred ninety-nine thousand, eight hundred eight".