222537872 has 20 divisors (see below), whose sum is σ = 437075820. Its totient is φ = 109744128.

The previous prime is 222537859. The next prime is 222537881. The reversal of 222537872 is 278735222.

222537872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 88811776 + 133726096 = 9424^2 + 11564^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94097 + ... + 96432.

It is an arithmetic number, because the mean of its divisors is an integer number (21853791).

Almost surely, 2^222537872 is an apocalyptic number.

It is an amenable number.

222537872 is a deficient number, since it is larger than the sum of its proper divisors (214537948).

222537872 is a wasteful number, since it uses less digits than its factorization.

222537872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190610 (or 190604 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 222537872 is about 14917.7033084855. The cubic root of 222537872 is about 605.9935154538.

The spelling of 222537872 in words is "two hundred twenty-two million, five hundred thirty-seven thousand, eight hundred seventy-two".