323204421 has 16 divisors (see below), whose sum is σ = 458032640. Its totient is φ = 202143600.

The previous prime is 323204359. The next prime is 323204423. The reversal of 323204421 is 124402323.

It is not a de Polignac number, because 323204421 - 2¹⁷ = 323073349 is a prime.

It is a super-2 number, since 2×323204421² = 208922195507890482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21655 + ... + 33396.

It is an arithmetic number, because the mean of its divisors is an integer number (28627040).

Almost surely, 2^323204421 is an apocalyptic number.

It is an amenable number.

323204421 is a deficient number, since it is larger than the sum of its proper divisors (134828219).

323204421 is a wasteful number, since it uses less digits than its factorization.

323204421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55176.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 323204421 is about 17977.8870004236. The cubic root of 323204421 is about 686.2659177266.

Adding to 323204421 its reverse (124402323), we get a palindrome (447606744).

The spelling of 323204421 in words is "three hundred twenty-three million, two hundred four thousand, four hundred twenty-one".