2813830 has 16 divisors (see below), whose sum is σ = 5189184. Its totient is φ = 1097920.

The previous prime is 2813827. The next prime is 2813849. The reversal of 2813830 is 383182.

It is a junction number, because it is equal to n+sod(n) for n = 2813795 and 2813804.

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 7 ways as a sum of consecutive naturals, for example, 3022 + ... + 3841.

It is an arithmetic number, because the mean of its divisors is an integer number (324324).

2^2813830 is an apocalyptic number.

2813830 is a deficient number, since it is larger than the sum of its proper divisors (2375354).

2813830 is a wasteful number, since it uses less digits than its factorization.

2813830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6911.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2813830 is about 1677.4474656453. The cubic root of 2813830 is about 141.1776510999.

The spelling of 2813830 in words is "two million, eight hundred thirteen thousand, eight hundred thirty".