222608736 has 120 divisors (see below), whose sum is σ = 748273680. Its totient is φ = 63597312.

The previous prime is 222608713. The next prime is 222608741. The reversal of 222608736 is 637806222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 222608736.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12010 + ... + 24278.

It is an arithmetic number, because the mean of its divisors is an integer number (6235614).

Almost surely, 2^222608736 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 222608736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374136840).

222608736 is an abundant number, since it is smaller than the sum of its proper divisors (525664944).

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

222608736 is a wasteful number, since it uses less digits than its factorization.

222608736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12298 (or 12281 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 222608736 is about 14920.0782839769. The cubic root of 222608736 is about 606.0578319477.

The spelling of 222608736 in words is "two hundred twenty-two million, six hundred eight thousand, seven hundred thirty-six".