47805220 has 24 divisors (see below), whose sum is σ = 101316600. Its totient is φ = 18945792.

The previous prime is 47805217. The next prime is 47805257. The reversal of 47805220 is 2250874.

47805220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23736384 + 24068836 = 4872^2 + 4906^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8785 + ... + 13144.

It is an arithmetic number, because the mean of its divisors is an integer number (4221525).

Almost surely, 2^47805220 is an apocalyptic number.

It is an amenable number.

47805220 is an abundant number, since it is smaller than the sum of its proper divisors (53511380).

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

47805220 is a wasteful number, since it uses less digits than its factorization.

47805220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22047 (or 22045 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 47805220 is about 6914.1319050189. The cubic root of 47805220 is about 362.9318705350.

It can be divided in two parts, 4780 and 5220, that added together give a 4-th power (10000 = 10⁴).

The spelling of 47805220 in words is "forty-seven million, eight hundred five thousand, two hundred twenty".