4224279 has 16 divisors (see below), whose sum is σ = 6024672. Its totient is φ = 2623488.

The previous prime is 4224247. The next prime is 4224281. The reversal of 4224279 is 9724224.

It is not a de Polignac number, because 4224279 - 2⁵ = 4224247 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4224229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5397 + ... + 6129.

It is an arithmetic number, because the mean of its divisors is an integer number (376542).

Almost surely, 2^4224279 is an apocalyptic number.

4224279 is a deficient number, since it is larger than the sum of its proper divisors (1800393).

4224279 is a wasteful number, since it uses less digits than its factorization.

4224279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866.

The product of its digits is 8064, while the sum is 30.

The square root of 4224279 is about 2055.3050868423. The cubic root of 4224279 is about 161.6531597931.

Subtracting 4224279 from its reverse (9724224), we obtain a palindrome (5499945).

The spelling of 4224279 in words is "four million, two hundred twenty-four thousand, two hundred seventy-nine".