222544464 has 20 divisors (see below), whose sum is σ = 574906656. Its totient is φ = 74181472.

The previous prime is 222544457. The next prime is 222544477. The reversal of 222544464 is 464445222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318124 + ... + 2318219.

Almost surely, 2^222544464 is an apocalyptic number.

222544464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222544464 is an abundant number, since it is smaller than the sum of its proper divisors (352362192).

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

222544464 is a wasteful number, since it uses less digits than its factorization.

222544464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636354 (or 4636348 counting only the distinct ones).

The product of its digits is 61440, while the sum is 33.

The square root of 222544464 is about 14917.9242523885. The cubic root of 222544464 is about 605.9994989594. Note that the first 3 decimals are identical.

Adding to 222544464 its reverse (464445222), we get a palindrome (686989686).

The spelling of 222544464 in words is "two hundred twenty-two million, five hundred forty-four thousand, four hundred sixty-four".