222806 has 8 divisors (see below), whose sum is σ = 337824. Its totient is φ = 110200.

The previous prime is 222799. The next prime is 222823. The reversal of 222806 is 608222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350 + ... + 753.

It is an arithmetic number, because the mean of its divisors is an integer number (42228).

2²²²⁸⁰⁶ is an apocalyptic number.

222806 is a deficient number, since it is larger than the sum of its proper divisors (115018).

222806 is a wasteful number, since it uses less digits than its factorization.

222806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 222806 is about 472.0233045094. The cubic root of 222806 is about 60.6236797814.

The spelling of 222806 in words is "two hundred twenty-two thousand, eight hundred six".