222794520 has 256 divisors, whose sum is σ = 789626880. Its totient is φ = 49766400.

The previous prime is 222794519. The next prime is 222794527. The reversal of 222794520 is 25497222.

222794520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222794527) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 821985 + ... + 822255.

It is an arithmetic number, because the mean of its divisors is an integer number (3084480).

Almost surely, 2^222794520 is an apocalyptic number.

222794520 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 222794520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394813440).

222794520 is an abundant number, since it is smaller than the sum of its proper divisors (566832360).

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

222794520 is a wasteful number, since it uses less digits than its factorization.

222794520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 222794520 is about 14926.3029582010. The cubic root of 222794520 is about 606.2263855896.

The spelling of 222794520 in words is "two hundred twenty-two million, seven hundred ninety-four thousand, five hundred twenty".