222243534 has 64 divisors (see below), whose sum is σ = 519785280. Its totient is φ = 70295040.

The previous prime is 222243473. The next prime is 222243563. The reversal of 222243534 is 435342222.

It is a happy number.

222243534 is a `hidden beast` number, since 2 + 222 + 435 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 222243498 and 222243507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80562 + ... + 83274.

It is an arithmetic number, because the mean of its divisors is an integer number (8121645).

Almost surely, 2^222243534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222243534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259892640).

222243534 is an abundant number, since it is smaller than the sum of its proper divisors (297541746).

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

222243534 is a wasteful number, since it uses less digits than its factorization.

222243534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802 (or 2796 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 222243534 is about 14907.8346516186. The cubic root of 222243534 is about 605.7262266936.

Adding to 222243534 its reverse (435342222), we get a palindrome (657585756).

The spelling of 222243534 in words is "two hundred twenty-two million, two hundred forty-three thousand, five hundred thirty-four".