4218999 has 16 divisors (see below), whose sum is σ = 5836800. Its totient is φ = 2708640.

The previous prime is 4218997. The next prime is 4219001. The reversal of 4218999 is 9998124.

It is an interprime number because it is at equal distance from previous prime (4218997) and next prime (4219001).

It is not a de Polignac number, because 4218999 - 2¹ = 4218997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4218999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218997) 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, 21102 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (364800).

Almost surely, 2^4218999 is an apocalyptic number.

4218999 is a deficient number, since it is larger than the sum of its proper divisors (1617801).

4218999 is a wasteful number, since it uses less digits than its factorization.

4218999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its digits is 46656, while the sum is 42.

The square root of 4218999 is about 2054.0202043797. The cubic root of 4218999 is about 161.5857806779.

The spelling of 4218999 in words is "four million, two hundred eighteen thousand, nine hundred ninety-nine".