222385872 has 20 divisors (see below), whose sum is σ = 574496960. Its totient is φ = 74128608.

The previous prime is 222385871. The next prime is 222385879. The reversal of 222385872 is 278583222.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 222385872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222385871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2316472 + ... + 2316567.

It is an arithmetic number, because the mean of its divisors is an integer number (28724848).

Almost surely, 2^222385872 is an apocalyptic number.

It is an amenable number.

222385872 is an abundant number, since it is smaller than the sum of its proper divisors (352111088).

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

222385872 is a wasteful number, since it uses less digits than its factorization.

222385872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633050 (or 4633044 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 222385872 is about 14912.6078202305. The cubic root of 222385872 is about 605.8555134843.

The spelling of 222385872 in words is "two hundred twenty-two million, three hundred eighty-five thousand, eight hundred seventy-two".