321424344 has 24 divisors (see below), whose sum is σ = 870524460. Its totient is φ = 107141424.

The previous prime is 321424339. The next prime is 321424361. The reversal of 321424344 is 443424123.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2232042 + ... + 2232185.

Almost surely, 2^321424344 is an apocalyptic number.

It is an amenable number.

321424344 is an abundant number, since it is smaller than the sum of its proper divisors (549100116).

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

321424344 is a wasteful number, since it uses less digits than its factorization.

321424344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464239 (or 4464232 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 321424344 is about 17928.3112422782. The cubic root of 321424344 is about 685.0037075119.

Adding to 321424344 its reverse (443424123), we get a palindrome (764848467).

The spelling of 321424344 in words is "three hundred twenty-one million, four hundred twenty-four thousand, three hundred forty-four".