42279 has 8 divisors (see below), whose sum is σ = 59760. Its totient is φ = 26496.

The previous prime is 42257. The next prime is 42281. The reversal of 42279 is 97224.

42279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42279 - 2⁸ = 42023 is a prime.

42279 is a lucky number.

It is a plaindrome in base 8 and base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42209) 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, 364 + ... + 465.

It is an arithmetic number, because the mean of its divisors is an integer number (7470).

2⁴²²⁷⁹ is an apocalyptic number.

42279 is a deficient number, since it is larger than the sum of its proper divisors (17481).

42279 is a wasteful number, since it uses less digits than its factorization.

42279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849.

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

The square root of 42279 is about 205.6185789271. The cubic root of 42279 is about 34.8370658048.

Subtracting 42279 from its reverse (97224), we obtain a palindrome (54945).

The spelling of 42279 in words is "forty-two thousand, two hundred seventy-nine".