222264648 has 80 divisors (see below), whose sum is σ = 631445760. Its totient is φ = 73029600.

The previous prime is 222264629. The next prime is 222264667. The reversal of 222264648 is 846462222.

222264648 is a `hidden beast` number, since 2 + 2 + 2 + 2 + 6 + 4 + 648 = 666.

It is an interprime number because it is at equal distance from previous prime (222264629) and next prime (222264667).

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 43593 + ... + 48423.

It is an arithmetic number, because the mean of its divisors is an integer number (7893072).

Almost surely, 2^222264648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222264648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315722880).

222264648 is an abundant number, since it is smaller than the sum of its proper divisors (409181112).

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

222264648 is a wasteful number, since it uses less digits than its factorization.

222264648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920 (or 4907 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 222264648 is about 14908.5427859332. The cubic root of 222264648 is about 605.7454082018.

The spelling of 222264648 in words is "two hundred twenty-two million, two hundred sixty-four thousand, six hundred forty-eight".