3636220 has 48 divisors (see below), whose sum is σ = 9192960. Its totient is φ = 1180224.

The previous prime is 3636211. The next prime is 3636221. The reversal of 3636220 is 226363.

It is a junction number, because it is equal to n+sod(n) for n = 3636191 and 3636200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1977 + ... + 3343.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

Almost surely, 2^3636220 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 3636220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4596480).

3636220 is an abundant number, since it is smaller than the sum of its proper divisors (5556740).

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

3636220 is a wasteful number, since it uses less digits than its factorization.

3636220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 3636220 is about 1906.8875163470. The cubic root of 3636220 is about 153.7741672192.

The spelling of 3636220 in words is "three million, six hundred thirty-six thousand, two hundred twenty".