326388065 has 16 divisors (see below), whose sum is σ = 401158656. Its totient is φ = 254856000.

The previous prime is 326388053. The next prime is 326388067. The reversal of 326388065 is 560883623.

It is not a de Polignac number, because 326388065 - 2⁶ = 326388001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326388067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31304 + ... + 40406.

It is an arithmetic number, because the mean of its divisors is an integer number (25072416).

Almost surely, 2^326388065 is an apocalyptic number.

It is an amenable number.

326388065 is a deficient number, since it is larger than the sum of its proper divisors (74770591).

326388065 is a wasteful number, since it uses less digits than its factorization.

326388065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9280.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 326388065 is about 18066.2133553216. The cubic root of 326388065 is about 688.5118561446.

The spelling of 326388065 in words is "three hundred twenty-six million, three hundred eighty-eight thousand, sixty-five".