4224636 has 120 divisors (see below), whose sum is σ = 12806640. Its totient is φ = 1202688.

The previous prime is 4224629. The next prime is 4224637. The reversal of 4224636 is 6364224.

4224636 is a `hidden beast` number, since 4 + 2 + 24 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4224637) 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 39 ways as a sum of consecutive naturals, for example, 71575 + ... + 71633.

It is an arithmetic number, because the mean of its divisors is an integer number (106722).

Almost surely, 2^4224636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4224636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6403320).

4224636 is an abundant number, since it is smaller than the sum of its proper divisors (8582004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4224636 is a wasteful number, since it uses less digits than its factorization.

4224636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 94 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 4224636 is about 2055.3919334278. The cubic root of 4224636 is about 161.6577135132.

The spelling of 4224636 in words is "four million, two hundred twenty-four thousand, six hundred thirty-six".