3809916220 has 48 divisors (see below), whose sum is σ = 8752665600. Its totient is φ = 1381536320.

The previous prime is 3809916169. The next prime is 3809916247. The reversal of 3809916220 is 226199083.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 54861 + ... + 103099.

It is an arithmetic number, because the mean of its divisors is an integer number (182347200).

Almost surely, 2^3809916220 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 3809916220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4376332800).

3809916220 is an abundant number, since it is smaller than the sum of its proper divisors (4942749380).

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

3809916220 is a wasteful number, since it uses less digits than its factorization.

3809916220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48618 (or 48616 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3809916220 is about 61724.5187911579. The cubic root of 3809916220 is about 1561.8469550027.

It can be divided in two parts, 3809 and 916220, that added together give a palindrome (920029).

The spelling of 3809916220 in words is "three billion, eight hundred nine million, nine hundred sixteen thousand, two hundred twenty".