4493636 has 36 divisors (see below), whose sum is σ = 9342144. Its totient is φ = 1852560.

The previous prime is 4493597. The next prime is 4493647. The reversal of 4493636 is 6363944.

It is a happy number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 4493596 and 4493605.

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 11 ways as a sum of consecutive naturals, for example, 26825 + ... + 26991.

It is an arithmetic number, because the mean of its divisors is an integer number (259504).

Almost surely, 2^4493636 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 4493636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4671072).

4493636 is an abundant number, since it is smaller than the sum of its proper divisors (4848508).

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

4493636 is a wasteful number, since it uses less digits than its factorization.

4493636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 207 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 4493636 is about 2119.8198036626. The cubic root of 4493636 is about 165.0184980792.

The spelling of 4493636 in words is "four million, four hundred ninety-three thousand, six hundred thirty-six".