326445631 has 8 divisors (see below), whose sum is σ = 343799280. Its totient is φ = 309109248.

The previous prime is 326445607. The next prime is 326445661. The reversal of 326445631 is 136544623.

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 326445631 - 2⁵ = 326445599 is a prime.

It is a super-2 number, since 2×326445631² = 213133499997976322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326445661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56865 + ... + 62341.

It is an arithmetic number, because the mean of its divisors is an integer number (42974910).

Almost surely, 2^326445631 is an apocalyptic number.

326445631 is a deficient number, since it is larger than the sum of its proper divisors (17353649).

326445631 is a wasteful number, since it uses less digits than its factorization.

326445631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8633.

The product of its digits is 51840, while the sum is 34.

The square root of 326445631 is about 18067.8064800351. The cubic root of 326445631 is about 688.5523320359.

The spelling of 326445631 in words is "three hundred twenty-six million, four hundred forty-five thousand, six hundred thirty-one".