279490 has 16 divisors (see below), whose sum is σ = 529920. Its totient is φ = 105840.

The previous prime is 279481. The next prime is 279511. The reversal of 279490 is 94972.

It is a super-2 number, since 2×279490² = 156229320200, which contains 22 as substring.

It is a plaindrome in base 12.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 546 + ... + 925.

It is an arithmetic number, because the mean of its divisors is an integer number (33120).

2²⁷⁹⁴⁹⁰ is an apocalyptic number.

279490 is a deficient number, since it is larger than the sum of its proper divisors (250430).

279490 is a wasteful number, since it uses less digits than its factorization.

279490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 279490 is about 528.6681378710. The cubic root of 279490 is about 65.3815819727.

The spelling of 279490 in words is "two hundred seventy-nine thousand, four hundred ninety".