324400 has 30 divisors (see below), whose sum is σ = 780332. Its totient is φ = 129600.

The previous prime is 324397. The next prime is 324403. The reversal of 324400 is 4423.

It is an interprime number because it is at equal distance from previous prime (324397) and next prime (324403).

It is not an unprimeable number, because it can be changed into a prime (324403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6 + ... + 805.

2³²⁴⁴⁰⁰ 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 324400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390166).

324400 is an abundant number, since it is smaller than the sum of its proper divisors (455932).

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

324400 is a wasteful number, since it uses less digits than its factorization.

324400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 324400 is about 569.5612346359. The cubic root of 324400 is about 68.7111074789.

Adding to 324400 its reverse (4423), we get a palindrome (328823).

It can be divided in two parts, 324 and 400, that multiplied together give a square (129600 = 360²).

The spelling of 324400 in words is "three hundred twenty-four thousand, four hundred", and thus it is an iban number.