4478526220 has 48 divisors (see below), whose sum is σ = 10772875008. Its totient is φ = 1532007360.

The previous prime is 4478526203. The next prime is 4478526229. The reversal of 4478526220 is 226258744.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4478526229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25915 + ... + 98125.

It is an arithmetic number, because the mean of its divisors is an integer number (224434896).

Almost surely, 2^4478526220 is an apocalyptic number.

It is an amenable number.

4478526220 is an abundant number, since it is smaller than the sum of its proper divisors (6294348788).

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

4478526220 is a wasteful number, since it uses less digits than its factorization.

4478526220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72670 (or 72668 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 4478526220 is about 66921.7918170158. The cubic root of 4478526220 is about 1648.3333302208. Note that the first 5 decimals are identical.

The spelling of 4478526220 in words is "four billion, four hundred seventy-eight million, five hundred twenty-six thousand, two hundred twenty".