323204420 has 96 divisors (see below), whose sum is σ = 875508480. Its totient is φ = 97251840.

The previous prime is 323204359. The next prime is 323204423. The reversal of 323204420 is 24402323.

It is a super-2 number, since 2×323204420² = 208922194215072800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 323204392 and 323204401.

It is not an unprimeable number, because it can be changed into a prime (323204423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41042 + ... + 48278.

It is an arithmetic number, because the mean of its divisors is an integer number (9119880).

Almost surely, 2^323204420 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 323204420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437754240).

323204420 is an abundant number, since it is smaller than the sum of its proper divisors (552304060).

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

323204420 is a wasteful number, since it uses less digits than its factorization.

323204420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7293 (or 7291 counting only the distinct ones).

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

The square root of 323204420 is about 17977.8869726117. The cubic root of 323204420 is about 686.2659170188.

Adding to 323204420 its reverse (24402323), we get a palindrome (347606743).

The spelling of 323204420 in words is "three hundred twenty-three million, two hundred four thousand, four hundred twenty".