4128442272 has 36 divisors (see below), whose sum is σ = 11740258530. Its totient is φ = 1376147328.

The previous prime is 4128442243. The next prime is 4128442309. The reversal of 4128442272 is 2722448214.

It can be written as a sum of positive squares in only one way, i.e., 4126263696 + 2178576 = 64236^2 + 1476^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7167147 + ... + 7167722.

Almost surely, 2^4128442272 is an apocalyptic number.

It is an amenable number.

4128442272 is an abundant number, since it is smaller than the sum of its proper divisors (7611816258).

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

4128442272 is a wasteful number, since it uses less digits than its factorization.

4128442272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14334885 (or 14334874 counting only the distinct ones).

The product of its digits is 57344, while the sum is 36.

The square root of 4128442272 is about 64252.9553561546. The cubic root of 4128442272 is about 1604.2131502818.

The spelling of 4128442272 in words is "four billion, one hundred twenty-eight million, four hundred forty-two thousand, two hundred seventy-two".