222279424 has 72 divisors (see below), whose sum is σ = 471003008. Its totient is φ = 104509440.

The previous prime is 222279371. The next prime is 222279433. The reversal of 222279424 is 424972222.

222279424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222279424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293254 + ... + 294010.

Almost surely, 2^222279424 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 222279424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235501504).

222279424 is an abundant number, since it is smaller than the sum of its proper divisors (248723584).

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

222279424 is an equidigital number, since it uses as much as digits as its factorization.

222279424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 827 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 222279424 is about 14909.0383325015. The cubic root of 222279424 is about 605.7588310829.

The spelling of 222279424 in words is "two hundred twenty-two million, two hundred seventy-nine thousand, four hundred twenty-four".