222713238 has 64 divisors (see below), whose sum is σ = 505036800. Its totient is φ = 64864800.

The previous prime is 222713237. The next prime is 222713279. The reversal of 222713238 is 832317222.

222713238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222713233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 406881 + ... + 407427.

It is an arithmetic number, because the mean of its divisors is an integer number (7891200).

Almost surely, 2^222713238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222713238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252518400).

222713238 is an abundant number, since it is smaller than the sum of its proper divisors (282323562).

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

222713238 is a wasteful number, since it uses less digits than its factorization.

222713238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793.

The product of its digits is 8064, while the sum is 30.

The square root of 222713238 is about 14923.5799324425. The cubic root of 222713238 is about 606.1526535447.

The spelling of 222713238 in words is "two hundred twenty-two million, seven hundred thirteen thousand, two hundred thirty-eight".