279441 has 12 divisors (see below), whose sum is σ = 411060. Its totient is φ = 182880.

The previous prime is 279431. The next prime is 279443. The reversal of 279441 is 144972.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 103041 + 176400 = 321^2 + 420^2 .

It is a de Polignac number, because none of the positive numbers 2^k-279441 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

279441 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (279443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 295 + ... + 803.

It is an arithmetic number, because the mean of its divisors is an integer number (34255).

2²⁷⁹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

279441 is a deficient number, since it is larger than the sum of its proper divisors (131619).

279441 is a wasteful number, since it uses less digits than its factorization.

279441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 573 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 279441 is about 528.6217929673. The cubic root of 279441 is about 65.3777608643.

The spelling of 279441 in words is "two hundred seventy-nine thousand, four hundred forty-one".