222539328 has 252 divisors, whose sum is σ = 730772224. Its totient is φ = 64627200.

The previous prime is 222539323. The next prime is 222539341. The reversal of 222539328 is 823935222.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 222539292 and 222539301.

It is not an unprimeable number, because it can be changed into a prime (222539321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2160525 + ... + 2160627.

Almost surely, 2^222539328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222539328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365386112).

222539328 is an abundant number, since it is smaller than the sum of its proper divisors (508232896).

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

222539328 is a wasteful number, since it uses less digits than its factorization.

222539328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 150 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 222539328 is about 14917.7521094835. The cubic root of 222539328 is about 605.9948370635.

The spelling of 222539328 in words is "two hundred twenty-two million, five hundred thirty-nine thousand, three hundred twenty-eight".