4128461220 has 96 divisors (see below), whose sum is σ = 13181228928. Its totient is φ = 956454912.

The previous prime is 4128461179. The next prime is 4128461297. The reversal of 4128461220 is 221648214.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142414 + ... + 168933.

It is an arithmetic number, because the mean of its divisors is an integer number (137304468).

Almost surely, 2^4128461220 is an apocalyptic number.

It is an amenable number.

4128461220 is an abundant number, since it is smaller than the sum of its proper divisors (9052767708).

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

4128461220 is a wasteful number, since it uses less digits than its factorization.

4128461220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311389 (or 311387 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 4128461220 is about 64253.1028044561. The cubic root of 4128461220 is about 1604.2156045234.

The spelling of 4128461220 in words is "four billion, one hundred twenty-eight million, four hundred sixty-one thousand, two hundred twenty".