4280128220 has 24 divisors (see below), whose sum is σ = 9047800608. Its totient is φ = 1700712000.

The previous prime is 4280128187. The next prime is 4280128247. The reversal of 4280128220 is 228210824.

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, 705611 + ... + 711650.

It is an arithmetic number, because the mean of its divisors is an integer number (376991692).

Almost surely, 2^4280128220 is an apocalyptic number.

It is an amenable number.

4280128220 is an abundant number, since it is smaller than the sum of its proper divisors (4767672388).

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

4280128220 is a wasteful number, since it uses less digits than its factorization.

4280128220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417421 (or 1417419 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 4280128220 is about 65422.6888777892. The cubic root of 4280128220 is about 1623.6244890198.

The spelling of 4280128220 in words is "four billion, two hundred eighty million, one hundred twenty-eight thousand, two hundred twenty".