326221200 has 90 divisors (see below), whose sum is σ = 1132090674. Its totient is φ = 86991360.

The previous prime is 326221157. The next prime is 326221237. The reversal of 326221200 is 2122623.

326221200 is a `hidden beast` number, since 32 + 622 + 12 + 0 + 0 = 666.

326221200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 113294736 + 212926464 = 10644^2 + 14592^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 41709 + ... + 48908.

Almost surely, 2^326221200 is an apocalyptic number.

326221200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

326221200 is an abundant number, since it is smaller than the sum of its proper divisors (805869474).

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

326221200 is a wasteful number, since it uses less digits than its factorization.

326221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90641 (or 90627 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 326221200 is about 18061.5946139869. The cubic root of 326221200 is about 688.3945028796.

Adding to 326221200 its reverse (2122623), we get a palindrome (328343823).

The spelling of 326221200 in words is "three hundred twenty-six million, two hundred twenty-one thousand, two hundred".