4218955 has 16 divisors (see below), whose sum is σ = 5572224. Its totient is φ = 3047040.

The previous prime is 4218947. The next prime is 4218961. The reversal of 4218955 is 5598124.

It is not a de Polignac number, because 4218955 - 2³ = 4218947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4218955.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2365 + ... + 3745.

It is an arithmetic number, because the mean of its divisors is an integer number (348264).

Almost surely, 2^4218955 is an apocalyptic number.

4218955 is a deficient number, since it is larger than the sum of its proper divisors (1353269).

4218955 is a wasteful number, since it uses less digits than its factorization.

4218955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446.

The product of its digits is 14400, while the sum is 34.

The square root of 4218955 is about 2054.0094936489. The cubic root of 4218955 is about 161.5852189492.

The spelling of 4218955 in words is "four million, two hundred eighteen thousand, nine hundred fifty-five".