326385288 has 80 divisors (see below), whose sum is σ = 938957580. Its totient is φ = 105846912.

The previous prime is 326385281. The next prime is 326385307. The reversal of 326385288 is 882583623.

326385288 is a `hidden beast` number, since 3 + 2 + 638 + 5 + 2 + 8 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 318194244 + 8191044 = 17838^2 + 2862^2 .

It is not an unprimeable number, because it can be changed into a prime (326385281) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17170 + ... + 30782.

Almost surely, 2^326385288 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 326385288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469478790).

326385288 is an abundant number, since it is smaller than the sum of its proper divisors (612572292).

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

326385288 is a wasteful number, since it uses less digits than its factorization.

326385288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13668 (or 13655 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 326385288 is about 18066.1364989862. The cubic root of 326385288 is about 688.5099034559.

The spelling of 326385288 in words is "three hundred twenty-six million, three hundred eighty-five thousand, two hundred eighty-eight".