406222 has 8 divisors (see below), whose sum is σ = 615672. Its totient is φ = 201000.

The previous prime is 406207. The next prime is 406247. The reversal of 406222 is 222604.

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

It is a junction number, because it is equal to n+sod(n) for n = 406196 and 406205.

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, 804 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (76959).

2⁴⁰⁶²²² is an apocalyptic number.

406222 is a deficient number, since it is larger than the sum of its proper divisors (209450).

406222 is a wasteful number, since it uses less digits than its factorization.

406222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 406222 is about 637.3554738135. The cubic root of 406222 is about 74.0607001349.

Adding to 406222 its reverse (222604), we get a palindrome (628826).

The spelling of 406222 in words is "four hundred six thousand, two hundred twenty-two".