4026636 has 36 divisors (see below), whose sum is σ = 10456992. Its totient is φ = 1305504.

The previous prime is 4026619. The next prime is 4026643. The reversal of 4026636 is 6366204.

4026636 is a `hidden beast` number, since 4 + 0 + 26 + 636 = 666.

4026636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 180 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (290472).

Almost surely, 2^4026636 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 4026636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5228496).

4026636 is an abundant number, since it is smaller than the sum of its proper divisors (6430356).

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

4026636 is a wasteful number, since it uses less digits than its factorization.

4026636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070 (or 3065 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 4026636 is about 2006.6479511863. The cubic root of 4026636 is about 159.0916760977.

The spelling of 4026636 in words is "four million, twenty-six thousand, six hundred thirty-six".