326309906 has 16 divisors (see below), whose sum is σ = 544121088. Its totient is φ = 145746000.

The previous prime is 326309881. The next prime is 326309911. The reversal of 326309906 is 609903623.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 326309906.

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, 201620 + ... + 203231.

It is an arithmetic number, because the mean of its divisors is an integer number (34007568).

Almost surely, 2^326309906 is an apocalyptic number.

326309906 is a deficient number, since it is larger than the sum of its proper divisors (217811182).

326309906 is a wasteful number, since it uses less digits than its factorization.

326309906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404897.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 326309906 is about 18064.0500995762. The cubic root of 326309906 is about 688.4568932543.

The spelling of 326309906 in words is "three hundred twenty-six million, three hundred nine thousand, nine hundred six".