222624746 has 16 divisors (see below), whose sum is σ = 340139688. Its totient is φ = 109252800.

The previous prime is 222624739. The next prime is 222624749. The reversal of 222624746 is 647426222.

It can be written as a sum of positive squares in 4 ways, for example, as 187991521 + 34633225 = 13711^2 + 5885^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (222624749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64316 + ... + 67688.

Almost surely, 2^222624746 is an apocalyptic number.

222624746 is a deficient number, since it is larger than the sum of its proper divisors (117514942).

222624746 is a wasteful number, since it uses less digits than its factorization.

222624746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977.

The product of its digits is 64512, while the sum is 35.

The square root of 222624746 is about 14920.6147996656. The cubic root of 222624746 is about 606.0723608074.

The spelling of 222624746 in words is "two hundred twenty-two million, six hundred twenty-four thousand, seven hundred forty-six".