222686949 has 16 divisors (see below), whose sum is σ = 305411904. Its totient is φ = 144240000.

The previous prime is 222686941. The next prime is 222686977. The reversal of 222686949 is 949686222.

It is a happy number.

It is not a de Polignac number, because 222686949 - 2³ = 222686941 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222686898 and 222686907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222686941) 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 15 ways as a sum of consecutive naturals, for example, 27267 + ... + 34479.

It is an arithmetic number, because the mean of its divisors is an integer number (19088244).

Almost surely, 2^222686949 is an apocalyptic number.

It is an amenable number.

222686949 is a deficient number, since it is larger than the sum of its proper divisors (82724955).

222686949 is a wasteful number, since it uses less digits than its factorization.

222686949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508.

The product of its digits is 746496, while the sum is 48.

The square root of 222686949 is about 14922.6991191272. The cubic root of 222686949 is about 606.1288025839.

The spelling of 222686949 in words is "two hundred twenty-two million, six hundred eighty-six thousand, nine hundred forty-nine".