4222320 has 80 divisors (see below), whose sum is σ = 13323552. Its totient is φ = 1105920.

The previous prime is 4222319. The next prime is 4222343. The reversal of 4222320 is 232224.

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 (15).

It is a self number, because there is not a number n which added to its sum of digits gives 4222320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17400 + ... + 17640.

Almost surely, 2^4222320 is an apocalyptic number.

4222320 is a gapful number since it is divisible by the number (40) 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 4222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6661776).

4222320 is an abundant number, since it is smaller than the sum of its proper divisors (9101232).

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

4222320 is a wasteful number, since it uses less digits than its factorization.

4222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 4222320 is about 2054.8284599937. The cubic root of 4222320 is about 161.6281671648.

Adding to 4222320 its reverse (232224), we get a palindrome (4454544).

The spelling of 4222320 in words is "four million, two hundred twenty-two thousand, three hundred twenty".