4120072128 has 140 divisors (see below), whose sum is σ = 12931883712. Its totient is φ = 1292544000.

The previous prime is 4120072067. The next prime is 4120072139. The reversal of 4120072128 is 8212700214.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64753 + ... + 111503.

Almost surely, 2^4120072128 is an apocalyptic number.

4120072128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4120072128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6465941856).

4120072128 is an abundant number, since it is smaller than the sum of its proper divisors (8811811584).

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

4120072128 is a wasteful number, since it uses less digits than its factorization.

4120072128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46792 (or 46773 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 4120072128 is about 64187.7879974065. The cubic root of 4120072128 is about 1603.1282713794.

The spelling of 4120072128 in words is "four billion, one hundred twenty million, seventy-two thousand, one hundred twenty-eight".