279020 has 24 divisors (see below), whose sum is σ = 669984. Its totient is φ = 95616.

The previous prime is 279007. The next prime is 279023. The reversal of 279020 is 20972.

279020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 278983 and 279001.

It is not an unprimeable number, because it can be changed into a prime (279023) by changing a digit.

279020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857 + ... + 1136.

It is an arithmetic number, because the mean of its divisors is an integer number (27916).

2²⁷⁹⁰²⁰ is an apocalyptic number.

279020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

279020 is an abundant number, since it is smaller than the sum of its proper divisors (390964).

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

279020 is a wasteful number, since it uses less digits than its factorization.

279020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 2007 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 279020 is about 528.2234375716. The cubic root of 279020 is about 65.3449121040.

Adding to 279020 its reverse (20972), we get a palindrome (299992).

The spelling of 279020 in words is "two hundred seventy-nine thousand, twenty".