404222 has 16 divisors (see below), whose sum is σ = 746592. Its totient is φ = 159840.

The previous prime is 404221. The next prime is 404249. The reversal of 404222 is 222404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 404197 and 404206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929 + ... + 1292.

It is an arithmetic number, because the mean of its divisors is an integer number (46662).

2⁴⁰⁴²²² is an apocalyptic number.

404222 is a deficient number, since it is larger than the sum of its proper divisors (342370).

404222 is a wasteful number, since it uses less digits than its factorization.

404222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 404222 is about 635.7845547039. The cubic root of 404222 is about 73.9389562320.

Adding to 404222 its reverse (222404), we get a palindrome (626626).

It can be divided in two parts, 404 and 222, that added together give a palindrome (626).

The spelling of 404222 in words is "four hundred four thousand, two hundred twenty-two", and thus it is an iban number.