4547971220 has 24 divisors (see below), whose sum is σ = 10285412424. Its totient is φ = 1679250816.

The previous prime is 4547971201. The next prime is 4547971261. The reversal of 4547971220 is 221797454.

It can be written as a sum of positive squares in 4 ways, for example, as 562069264 + 3985901956 = 23708^2 + 63134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8745839 + ... + 8746358.

It is an arithmetic number, because the mean of its divisors is an integer number (428558851).

Almost surely, 2^4547971220 is an apocalyptic number.

It is an amenable number.

4547971220 is an abundant number, since it is smaller than the sum of its proper divisors (5737441204).

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

4547971220 is a wasteful number, since it uses less digits than its factorization.

4547971220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17492219 (or 17492217 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 4547971220 is about 67438.6478215570. The cubic root of 4547971220 is about 1656.8094738935.

The spelling of 4547971220 in words is "four billion, five hundred forty-seven million, nine hundred seventy-one thousand, two hundred twenty".