324223400 has 48 divisors (see below), whose sum is σ = 761186400. Its totient is φ = 128422080.

The previous prime is 324223399. The next prime is 324223411. The reversal of 324223400 is 4322423.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 12731 + ... + 28469.

It is an arithmetic number, because the mean of its divisors is an integer number (15858050).

Almost surely, 2^324223400 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 324223400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380593200).

324223400 is an abundant number, since it is smaller than the sum of its proper divisors (436963000).

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

324223400 is a wasteful number, since it uses less digits than its factorization.

324223400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15858 (or 15849 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 324223400 is about 18006.2044862320. The cubic root of 324223400 is about 686.9863667719.

Adding to 324223400 its reverse (4322423), we get a palindrome (328545823).

The spelling of 324223400 in words is "three hundred twenty-four million, two hundred twenty-three thousand, four hundred".