326543200 has 72 divisors (see below), whose sum is σ = 808542000. Its totient is φ = 128755200.

The previous prime is 326543183. The next prime is 326543233. The reversal of 326543200 is 2345623.

It is a happy number.

It is a super-2 number, since 2×326543200² = 213260922932480000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53926 + ... + 59674.

It is an arithmetic number, because the mean of its divisors is an integer number (11229750).

Almost surely, 2^326543200 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 326543200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404271000).

326543200 is an abundant number, since it is smaller than the sum of its proper divisors (481998800).

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

326543200 is a wasteful number, since it uses less digits than its factorization.

326543200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5840 (or 5827 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 326543200 is about 18070.5063570449. The cubic root of 326543200 is about 688.6209240301.

Adding to 326543200 its reverse (2345623), we get a palindrome (328888823).

The spelling of 326543200 in words is "three hundred twenty-six million, five hundred forty-three thousand, two hundred".