222644364 has 24 divisors (see below), whose sum is σ = 520081968. Its totient is φ = 74132160.

The previous prime is 222644363. The next prime is 222644377. The reversal of 222644364 is 463446222.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222644363) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1434 + ... + 21150.

It is an arithmetic number, because the mean of its divisors is an integer number (21670082).

Almost surely, 2^222644364 is an apocalyptic number.

It is an amenable number.

222644364 is an abundant number, since it is smaller than the sum of its proper divisors (297437604).

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

222644364 is a wasteful number, since it uses less digits than its factorization.

222644364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20665 (or 20663 counting only the distinct ones).

The product of its digits is 55296, while the sum is 33.

The square root of 222644364 is about 14921.2721977719. The cubic root of 222644364 is about 606.0901629289.

The spelling of 222644364 in words is "two hundred twenty-two million, six hundred forty-four thousand, three hundred sixty-four".