4809636 has 72 divisors (see below), whose sum is σ = 13453440. Its totient is φ = 1439424.

The previous prime is 4809583. The next prime is 4809643. The reversal of 4809636 is 6369084.

It is a super-3 number, since 3×4809636³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 4809636.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20005 + ... + 20243.

Almost surely, 2^4809636 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 4809636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6726720).

4809636 is an abundant number, since it is smaller than the sum of its proper divisors (8643804).

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

4809636 is a wasteful number, since it uses less digits than its factorization.

4809636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 4809636 is about 2193.0882335191. The cubic root of 4809636 is about 168.7993370144.

It can be divided in two parts, 4809 and 636, that added together give a palindrome (5445).

The spelling of 4809636 in words is "four million, eight hundred nine thousand, six hundred thirty-six".