424279 has 4 divisors (see below), whose sum is σ = 435784. Its totient is φ = 412776.

The previous prime is 424273. The next prime is 424313. The reversal of 424279 is 972424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 424279 - 2³ = 424271 is a prime.

It is a Duffinian number.

424279 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5697 + ... + 5770.

It is an arithmetic number, because the mean of its divisors is an integer number (108946).

2⁴²⁴²⁷⁹ is an apocalyptic number.

424279 is a deficient number, since it is larger than the sum of its proper divisors (11505).

424279 is a wasteful number, since it uses less digits than its factorization.

424279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11504.

The product of its digits is 4032, while the sum is 28.

The square root of 424279 is about 651.3670240348. The cubic root of 424279 is about 75.1421895175.

It can be divided in two parts, 42427 and 9, that added together give a square (42436 = 206²).

The spelling of 424279 in words is "four hundred twenty-four thousand, two hundred seventy-nine".