4218236 has 12 divisors (see below), whose sum is σ = 8053080. Its totient is φ = 1917360.

The previous prime is 4218199. The next prime is 4218241. The reversal of 4218236 is 6328124.

It is a d-powerful number, because it can be written as 4⁹ + 2⁷ + 1 + 8⁷ + 2¹¹ + 3¹¹ + 6⁸ .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 47891 + ... + 47978.

It is an arithmetic number, because the mean of its divisors is an integer number (671090).

Almost surely, 2^4218236 is an apocalyptic number.

It is an amenable number.

4218236 is a deficient number, since it is larger than the sum of its proper divisors (3834844).

4218236 is a wasteful number, since it uses less digits than its factorization.

4218236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95884 (or 95882 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 4218236 is about 2053.8344626576. The cubic root of 4218236 is about 161.5760392374.

The spelling of 4218236 in words is "four million, two hundred eighteen thousand, two hundred thirty-six".