223422320 has 80 divisors (see below), whose sum is σ = 569213568. Its totient is φ = 80881920.

The previous prime is 223422319. The next prime is 223422359. The reversal of 223422320 is 23224322.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 223422292 and 223422301.

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 15 ways as a sum of consecutive naturals, for example, 269747 + ... + 270573.

Almost surely, 2^223422320 is an apocalyptic number.

223422320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223422320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284606784).

223422320 is an abundant number, since it is smaller than the sum of its proper divisors (345791248).

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

223422320 is a wasteful number, since it uses less digits than its factorization.

223422320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1152 counting only the distinct ones).

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

The square root of 223422320 is about 14947.3181541038. The cubic root of 223422320 is about 606.7952685278.

Adding to 223422320 its reverse (23224322), we get a palindrome (246646642).

The spelling of 223422320 in words is "two hundred twenty-three million, four hundred twenty-two thousand, three hundred twenty".