2170028 has 24 divisors (see below), whose sum is σ = 4569600. Its totient is φ = 880848.

The previous prime is 2169997. The next prime is 2170039. The reversal of 2170028 is 8200712.

It is a junction number, because it is equal to n+sod(n) for n = 2169991 and 2170009.

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, 1508 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (190400).

2^2170028 is an apocalyptic number.

2170028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2170028 is an abundant number, since it is smaller than the sum of its proper divisors (2399572).

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

2170028 is a wasteful number, since it uses less digits than its factorization.

2170028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4107 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2170028 is about 1473.1014900542. The cubic root of 2170028 is about 129.4658158755.

The spelling of 2170028 in words is "two million, one hundred seventy thousand, twenty-eight".