326643401 has 8 divisors (see below), whose sum is σ = 389537664. Its totient is φ = 267806880.

The previous prime is 326643397. The next prime is 326643413. The reversal of 326643401 is 104346623.

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

It is a cyclic number.

It is not a de Polignac number, because 326643401 - 2² = 326643397 is a prime.

It is a super-2 number, since 2×326643401² = 213391822833693602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326643431) 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, 1014260 + ... + 1014581.

It is an arithmetic number, because the mean of its divisors is an integer number (48692208).

Almost surely, 2^326643401 is an apocalyptic number.

It is an amenable number.

326643401 is a deficient number, since it is larger than the sum of its proper divisors (62894263).

326643401 is a wasteful number, since it uses less digits than its factorization.

326643401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028871.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 326643401 is about 18073.2786455585. The cubic root of 326643401 is about 688.6913521273.

The spelling of 326643401 in words is "three hundred twenty-six million, six hundred forty-three thousand, four hundred one".