222633645 has 32 divisors (see below), whose sum is σ = 386206464. Its totient is φ = 108864000.

The previous prime is 222633623. The next prime is 222633673. The reversal of 222633645 is 546336222.

It is not a de Polignac number, because 222633645 - 2⁷ = 222633517 is a prime.

It is a super-3 number, since 3×222633645³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25665 + ... + 33225.

It is an arithmetic number, because the mean of its divisors is an integer number (12068952).

Almost surely, 2^222633645 is an apocalyptic number.

It is an amenable number.

222633645 is a deficient number, since it is larger than the sum of its proper divisors (163572819).

222633645 is a wasteful number, since it uses less digits than its factorization.

222633645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733.

The product of its digits is 51840, while the sum is 33.

The square root of 222633645 is about 14920.9130082579. The cubic root of 222633645 is about 606.0804362291.

Adding to 222633645 its reverse (546336222), we get a palindrome (768969867).

The spelling of 222633645 in words is "two hundred twenty-two million, six hundred thirty-three thousand, six hundred forty-five".