222797844 has 24 divisors (see below), whose sum is σ = 577624320. Its totient is φ = 74265912.

The previous prime is 222797843. The next prime is 222797863. The reversal of 222797844 is 448797222.

It is a self number, because there is not a number n which added to its sum of digits gives 222797844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222797843) 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, 1031364 + ... + 1031579.

It is an arithmetic number, because the mean of its divisors is an integer number (24067680).

Almost surely, 2^222797844 is an apocalyptic number.

It is an amenable number.

222797844 is an abundant number, since it is smaller than the sum of its proper divisors (354826476).

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

222797844 is a wasteful number, since it uses less digits than its factorization.

222797844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062956 (or 2062948 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 222797844 is about 14926.4143048490. The cubic root of 222797844 is about 606.2294004550.

The spelling of 222797844 in words is "two hundred twenty-two million, seven hundred ninety-seven thousand, eight hundred forty-four".