279422 has 16 divisors (see below), whose sum is σ = 492912. Its totient is φ = 117120.

The previous prime is 279421. The next prime is 279431. The reversal of 279422 is 224972.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 279391 and 279400.

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 279422.

It is not an unprimeable number, because it can be changed into a prime (279421) 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, 203 + ... + 774.

It is an arithmetic number, because the mean of its divisors is an integer number (30807).

279422 is a Friedman number, since it can be written as (4+2)^7-2-2^9, using all its digits and the basic arithmetic operations.

2²⁷⁹⁴²² is an apocalyptic number.

279422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

279422 is a deficient number, since it is larger than the sum of its proper divisors (213490).

279422 is a wasteful number, since it uses less digits than its factorization.

279422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its digits is 2016, while the sum is 26.

The square root of 279422 is about 528.6038214012. The cubic root of 279422 is about 65.3762790898.

It can be divided in two parts, 27 and 9422, that added together give a palindrome (9449).

The spelling of 279422 in words is "two hundred seventy-nine thousand, four hundred twenty-two".