2173528028 has 24 divisors (see below), whose sum is σ = 4575849600. Its totient is φ = 882484848.

The previous prime is 2173528001. The next prime is 2173528031. The reversal of 2173528028 is 8208253712.

2173528028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 2173527982 and 2173528000.

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, 2042258 + ... + 2043321.

It is an arithmetic number, because the mean of its divisors is an integer number (190660400).

Almost surely, 2^2173528028 is an apocalyptic number.

2173528028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2173528028 is an abundant number, since it is smaller than the sum of its proper divisors (2402321572).

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

2173528028 is a wasteful number, since it uses less digits than its factorization.

2173528028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085609 (or 4085607 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 2173528028 is about 46621.1113981638. Note that the first 3 decimals coincide. The cubic root of 2173528028 is about 1295.3538342320.

The spelling of 2173528028 in words is "two billion, one hundred seventy-three million, five hundred twenty-eight thousand, twenty-eight".