279222 has 16 divisors (see below), whose sum is σ = 563760. Its totient is φ = 92192.

The previous prime is 279221. The next prime is 279269. The reversal of 279222 is 222972.

It is a d-powerful number, because it can be written as 2 + 7⁵ + 2² + 9 + 2⁸ + 2¹⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 279192 and 279201.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 279222.

It is not an unprimeable number, because it can be changed into a prime (279221) 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, 904 + ... + 1172.

It is an arithmetic number, because the mean of its divisors is an integer number (35235).

2²⁷⁹²²² is an apocalyptic number.

279222 is an abundant number, since it is smaller than the sum of its proper divisors (284538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

279222 is a wasteful number, since it uses less digits than its factorization.

279222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its digits is 1008, while the sum is 24.

The square root of 279222 is about 528.4146099419. The cubic root of 279222 is about 65.3606773874.

The spelling of 279222 in words is "two hundred seventy-nine thousand, two hundred twenty-two".