2128790 has 16 divisors (see below), whose sum is σ = 3855168. Its totient is φ = 846336.

The previous prime is 2128783. The next prime is 2128799. The reversal of 2128790 is 978212.

It is a happy number.

2128790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379 + ... + 2481.

It is an arithmetic number, because the mean of its divisors is an integer number (240948).

2^2128790 is an apocalyptic number.

2128790 is a deficient number, since it is larger than the sum of its proper divisors (1726378).

2128790 is a wasteful number, since it uses less digits than its factorization.

2128790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2128790 is about 1459.0373538741. The cubic root of 2128790 is about 128.6404667437.

The spelling of 2128790 in words is "two million, one hundred twenty-eight thousand, seven hundred ninety".