222356889 has 36 divisors (see below), whose sum is σ = 347839596. Its totient is φ = 136800768.

The previous prime is 222356881. The next prime is 222356903. The reversal of 222356889 is 988653222.

It is a happy number.

222356889 is a `hidden beast` number, since 2 + 2 + 2 + 3 + 568 + 89 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 46131264 + 176225625 = 6792^2 + 13275^2 .

It is not a de Polignac number, because 222356889 - 2³ = 222356881 is a prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222356881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 137047 + ... + 138659.

It is an arithmetic number, because the mean of its divisors is an integer number (9662211).

Almost surely, 2^222356889 is an apocalyptic number.

It is an amenable number.

222356889 is a deficient number, since it is larger than the sum of its proper divisors (125482707).

222356889 is a wasteful number, since it uses less digits than its factorization.

222356889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 1686 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 222356889 is about 14911.6360269422. The cubic root of 222356889 is about 605.8291924579.

The spelling of 222356889 in words is "two hundred twenty-two million, three hundred fifty-six thousand, eight hundred eighty-nine".