326055640 has 16 divisors (see below), whose sum is σ = 733625280. Its totient is φ = 130422240.

The previous prime is 326055617. The next prime is 326055641. The reversal of 326055640 is 46550623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326055641) 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 3 ways as a sum of consecutive naturals, for example, 4075656 + ... + 4075735.

It is an arithmetic number, because the mean of its divisors is an integer number (45851580).

Almost surely, 2^326055640 is an apocalyptic number.

It is an amenable number.

326055640 is an abundant number, since it is smaller than the sum of its proper divisors (407569640).

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

326055640 is a wasteful number, since it uses less digits than its factorization.

326055640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8151402 (or 8151398 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 326055640 is about 18057.0108268229. The cubic root of 326055640 is about 688.2780278419.

The spelling of 326055640 in words is "three hundred twenty-six million, fifty-five thousand, six hundred forty".