4206328728 has 32 divisors (see below), whose sum is σ = 12018082560. Its totient is φ = 1201808160.

The previous prime is 4206328723. The next prime is 4206328733. The reversal of 4206328728 is 8278236024.

It is an interprime number because it is at equal distance from previous prime (4206328723) and next prime (4206328733).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 4206328728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4206328723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12518668 + ... + 12519003.

It is an arithmetic number, because the mean of its divisors is an integer number (375565080).

Almost surely, 2^4206328728 is an apocalyptic number.

It is an amenable number.

4206328728 is an abundant number, since it is smaller than the sum of its proper divisors (7811753832).

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

4206328728 is a wasteful number, since it uses less digits than its factorization.

4206328728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25037687 (or 25037683 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 4206328728 is about 64856.2158008005. The cubic root of 4206328728 is about 1614.2386322611.

The spelling of 4206328728 in words is "four billion, two hundred six million, three hundred twenty-eight thousand, seven hundred twenty-eight".