2128830 has 32 divisors (see below), whose sum is σ = 5574528. Its totient is φ = 516000.

The previous prime is 2128823. The next prime is 2128831. The reversal of 2128830 is 388212.

It is a self number, because there is not a number n which added to its sum of digits gives 2128830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2896 + ... + 3555.

It is an arithmetic number, because the mean of its divisors is an integer number (174204).

2^2128830 is an apocalyptic number.

2128830 is an abundant number, since it is smaller than the sum of its proper divisors (3445698).

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

2128830 is a wasteful number, since it uses less digits than its factorization.

2128830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2128830 is about 1459.0510614780. The cubic root of 2128830 is about 128.6412724575.

The spelling of 2128830 in words is "two million, one hundred twenty-eight thousand, eight hundred thirty".