326940288 has 64 divisors (see below), whose sum is σ = 891945120. Its totient is φ = 106030080.

The previous prime is 326940283. The next prime is 326940307. The reversal of 326940288 is 882049623.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (326940283) 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, 2703 + ... + 25713.

Almost surely, 2^326940288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326940288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445972560).

326940288 is an abundant number, since it is smaller than the sum of its proper divisors (565004832).

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

326940288 is a wasteful number, since it uses less digits than its factorization.

326940288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23065 (or 23053 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 326940288 is about 18081.4902040733. The cubic root of 326940288 is about 688.8999400393.

The spelling of 326940288 in words is "three hundred twenty-six million, nine hundred forty thousand, two hundred eighty-eight".