3820604220 has 96 divisors (see below), whose sum is σ = 11904459840. Its totient is φ = 1017273600.

The previous prime is 3820604173. The next prime is 3820604231. The reversal of 3820604220 is 224060283.

3820604220 is a `hidden beast` number, since 38 + 2 + 0 + 604 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373494 + ... + 383586.

It is an arithmetic number, because the mean of its divisors is an integer number (124004790).

Almost surely, 2^3820604220 is an apocalyptic number.

3820604220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3820604220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5952229920).

3820604220 is an abundant number, since it is smaller than the sum of its proper divisors (8083855620).

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

3820604220 is a wasteful number, since it uses less digits than its factorization.

3820604220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10812 (or 10804 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 3820604220 is about 61811.0363931879. The cubic root of 3820604220 is about 1563.3060802493.

The spelling of 3820604220 in words is "three billion, eight hundred twenty million, six hundred four thousand, two hundred twenty".