2189028 has 24 divisors (see below), whose sum is σ = 5377120. Its totient is φ = 691200.

The previous prime is 2189027. The next prime is 2189029. The reversal of 2189028 is 8209812.

It is an interprime number because it is at equal distance from previous prime (2189027) and next prime (2189029).

It is a junction number, because it is equal to n+sod(n) for n = 2188986 and 2189004.

It is not an unprimeable number, because it can be changed into a prime (2189021) 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, 4573 + ... + 5028.

2^2189028 is an apocalyptic number.

It is an amenable number.

2189028 is an abundant number, since it is smaller than the sum of its proper divisors (3188092).

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

2189028 is a wasteful number, since it uses less digits than its factorization.

2189028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9627 (or 9625 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2189028 is about 1479.5364138811. The cubic root of 2189028 is about 129.8425707723.

The spelling of 2189028 in words is "two million, one hundred eighty-nine thousand, twenty-eight".