4218279 has 8 divisors (see below), whose sum is σ = 6057072. Its totient is φ = 2595840.

The previous prime is 4218271. The next prime is 4218281. The reversal of 4218279 is 9728124.

It is a happy number.

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

It is not a de Polignac number, because 4218279 - 2³ = 4218271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54042 + ... + 54119.

It is an arithmetic number, because the mean of its divisors is an integer number (757134).

Almost surely, 2^4218279 is an apocalyptic number.

4218279 is a deficient number, since it is larger than the sum of its proper divisors (1838793).

4218279 is a wasteful number, since it uses less digits than its factorization.

4218279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108177.

The product of its digits is 8064, while the sum is 33.

The square root of 4218279 is about 2053.8449308553. The cubic root of 4218279 is about 161.5765882620.

The spelling of 4218279 in words is "four million, two hundred eighteen thousand, two hundred seventy-nine".