222838900 has 72 divisors (see below), whose sum is σ = 512154720. Its totient is φ = 84013440.

The previous prime is 222838883. The next prime is 222838909. The reversal of 222838900 is 9838222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222838909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123807 + ... + 125593.

It is an arithmetic number, because the mean of its divisors is an integer number (7113260).

Almost surely, 2^222838900 is an apocalyptic number.

222838900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222838900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256077360).

222838900 is an abundant number, since it is smaller than the sum of its proper divisors (289315820).

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

222838900 is a wasteful number, since it uses less digits than its factorization.

222838900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1866 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 222838900 is about 14927.7895215601. The cubic root of 222838900 is about 606.2666357429.

The spelling of 222838900 in words is "two hundred twenty-two million, eight hundred thirty-eight thousand, nine hundred".