326305813 has 8 divisors (see below), whose sum is σ = 332696160. Its totient is φ = 319944240.

The previous prime is 326305747. The next prime is 326305823. The reversal of 326305813 is 318503623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326305813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326305823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16458 + ... + 30388.

It is an arithmetic number, because the mean of its divisors is an integer number (41587020).

Almost surely, 2^326305813 is an apocalyptic number.

It is an amenable number.

326305813 is a deficient number, since it is larger than the sum of its proper divisors (6390347).

326305813 is a wasteful number, since it uses less digits than its factorization.

326305813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14387.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 326305813 is about 18063.9368079054. The cubic root of 326305813 is about 688.4540147373.

The spelling of 326305813 in words is "three hundred twenty-six million, three hundred five thousand, eight hundred thirteen".