222689489 has 12 divisors (see below), whose sum is σ = 245169540. Its totient is φ = 202118400.

The previous prime is 222689479. The next prime is 222689501. The reversal of 222689489 is 984986222.

It can be written as a sum of positive squares in 2 ways, for example, as 120275089 + 102414400 = 10967^2 + 10120^2 .

It is a de Polignac number, because none of the positive numbers 2^k-222689489 is a prime.

It is a super-2 number, since 2×222689489² = 99181217022162242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222689449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105557 + ... + 107645.

It is an arithmetic number, because the mean of its divisors is an integer number (20430795).

Almost surely, 2^222689489 is an apocalyptic number.

It is an amenable number.

222689489 is a deficient number, since it is larger than the sum of its proper divisors (22480051).

222689489 is a wasteful number, since it uses less digits than its factorization.

222689489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992 (or 2981 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 222689489 is about 14922.7842241319. The cubic root of 222689489 is about 606.1311071064.

The spelling of 222689489 in words is "two hundred twenty-two million, six hundred eighty-nine thousand, four hundred eighty-nine".