222428624 has 20 divisors (see below), whose sum is σ = 470133600. Its totient is φ = 101103840.

The previous prime is 222428621. The next prime is 222428639. The reversal of 222428624 is 426824222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222428621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631724 + ... + 632075.

It is an arithmetic number, because the mean of its divisors is an integer number (23506680).

Almost surely, 2^222428624 is an apocalyptic number.

It is an amenable number.

222428624 is an abundant number, since it is smaller than the sum of its proper divisors (247704976).

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

222428624 is a wasteful number, since it uses less digits than its factorization.

222428624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263818 (or 1263812 counting only the distinct ones).

The product of its digits is 24576, while the sum is 32.

The square root of 222428624 is about 14914.0411693142. The cubic root of 222428624 is about 605.8943347084.

The spelling of 222428624 in words is "two hundred twenty-two million, four hundred twenty-eight thousand, six hundred twenty-four".