222240534 has 16 divisors (see below), whose sum is σ = 453938688. Its totient is φ = 72503912.

The previous prime is 222240527. The next prime is 222240539. The reversal of 222240534 is 435042222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222240539) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 393762 + ... + 394325.

It is an arithmetic number, because the mean of its divisors is an integer number (28371168).

Almost surely, 2^222240534 is an apocalyptic number.

222240534 is an abundant number, since it is smaller than the sum of its proper divisors (231698154).

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

222240534 is a wasteful number, since it uses less digits than its factorization.

222240534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788139.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 222240534 is about 14907.7340330447. The cubic root of 222240534 is about 605.7235011747.

Adding to 222240534 its reverse (435042222), we get a palindrome (657282756).

The spelling of 222240534 in words is "two hundred twenty-two million, two hundred forty thousand, five hundred thirty-four".