326820642 has 8 divisors (see below), whose sum is σ = 653641296. Its totient is φ = 108940212.

The previous prime is 326820619. The next prime is 326820649. The reversal of 326820642 is 246028623.

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

326820642 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (326820649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27235048 + ... + 27235059.

It is an arithmetic number, because the mean of its divisors is an integer number (81705162).

Almost surely, 2^326820642 is an apocalyptic number.

326820642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

326820642 is a wasteful number, since it uses less digits than its factorization.

326820642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54470112.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 326820642 is about 18078.1813797738. The cubic root of 326820642 is about 688.8158939287.

The spelling of 326820642 in words is "three hundred twenty-six million, eight hundred twenty thousand, six hundred forty-two".