2809230 has 32 divisors (see below), whose sum is σ = 6976800. Its totient is φ = 723072.

The previous prime is 2809223. The next prime is 2809241. The reversal of 2809230 is 329082.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2809230.

It is a congruent number.

It is an unprimeable number.

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, 745 + ... + 2484.

It is an arithmetic number, because the mean of its divisors is an integer number (218025).

2^2809230 is an apocalyptic number.

2809230 is an abundant number, since it is smaller than the sum of its proper divisors (4167570).

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

2809230 is a wasteful number, since it uses less digits than its factorization.

2809230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3268.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2809230 is about 1676.0757739434. The cubic root of 2809230 is about 141.1006775559.

The spelling of 2809230 in words is "two million, eight hundred nine thousand, two hundred thirty".