326801920 has 40 divisors (see below), whose sum is σ = 783564804. Its totient is φ = 130719744.

The previous prime is 326801887. The next prime is 326801929. The reversal of 326801920 is 29108623.

It can be written as a sum of positive squares in 2 ways, for example, as 270010624 + 56791296 = 16432^2 + 7536^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (326801929) 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, 61269 + ... + 66388.

Almost surely, 2^326801920 is an apocalyptic number.

It is an amenable number.

326801920 is an abundant number, since it is smaller than the sum of its proper divisors (456762884).

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

326801920 is an equidigital number, since it uses as much as digits as its factorization.

326801920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127680 (or 127664 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 326801920 is about 18077.6635658483. The cubic root of 326801920 is about 688.8027406822.

The spelling of 326801920 in words is "three hundred twenty-six million, eight hundred one thousand, nine hundred twenty".