222424624 has 20 divisors (see below), whose sum is σ = 435217680. Its totient is φ = 110110400.

The previous prime is 222424613. The next prime is 222424639. The reversal of 222424624 is 426424222.

It is a junction number, because it is equal to n+sod(n) for n = 222424592 and 222424601.

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 3 ways as a sum of consecutive naturals, for example, 67204 + ... + 70435.

It is an arithmetic number, because the mean of its divisors is an integer number (21760884).

Almost surely, 2^222424624 is an apocalyptic number.

It is an amenable number.

222424624 is a deficient number, since it is larger than the sum of its proper divisors (212793056).

222424624 is a wasteful number, since it uses less digits than its factorization.

222424624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137748 (or 137742 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 222424624 is about 14913.9070668956. The cubic root of 222424624 is about 605.8907026941.

Adding to 222424624 its reverse (426424222), we get a palindrome (648848846).

The spelling of 222424624 in words is "two hundred twenty-two million, four hundred twenty-four thousand, six hundred twenty-four".