222609016 has 128 divisors (see below), whose sum is σ = 550195200. Its totient is φ = 82114560.

The previous prime is 222609007. The next prime is 222609053. The reversal of 222609016 is 610906222.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 560530 + ... + 560926.

It is an arithmetic number, because the mean of its divisors is an integer number (4298400).

Almost surely, 2^222609016 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 222609016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275097600).

222609016 is an abundant number, since it is smaller than the sum of its proper divisors (327586184).

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

222609016 is a wasteful number, since it uses less digits than its factorization.

222609016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 222609016 is about 14920.0876673028. The cubic root of 222609016 is about 606.0580860499.

The spelling of 222609016 in words is "two hundred twenty-two million, six hundred nine thousand, sixteen".