222423544 has 24 divisors (see below), whose sum is σ = 485133840. Its totient is φ = 95324208.

The previous prime is 222423527. The next prime is 222423559. The reversal of 222423544 is 445324222.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 283312 + ... + 284095.

It is an arithmetic number, because the mean of its divisors is an integer number (20213910).

Almost surely, 2^222423544 is an apocalyptic number.

It is an amenable number.

222423544 is an abundant number, since it is smaller than the sum of its proper divisors (262710296).

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

222423544 is a wasteful number, since it uses less digits than its factorization.

222423544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567427 (or 567416 counting only the distinct ones).

The product of its digits is 15360, while the sum is 28.

The square root of 222423544 is about 14913.8708590359. The cubic root of 222423544 is about 605.8897220427.

Adding to 222423544 its reverse (445324222), we get a palindrome (667747766).

The spelling of 222423544 in words is "two hundred twenty-two million, four hundred twenty-three thousand, five hundred forty-four".