2123826 has 16 divisors (see below), whose sum is σ = 4265184. Its totient is φ = 705024.

The previous prime is 2123791. The next prime is 2123831. The reversal of 2123826 is 6283212.

It is a junction number, because it is equal to n+sod(n) for n = 2123796 and 2123805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (266574).

2^2123826 is an apocalyptic number.

2123826 is an abundant number, since it is smaller than the sum of its proper divisors (2141358).

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

2123826 is a wasteful number, since it uses less digits than its factorization.

2123826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465.

The product of its digits is 1152, while the sum is 24.

The square root of 2123826 is about 1457.3352394010. The cubic root of 2123826 is about 128.5403992139.

The spelling of 2123826 in words is "two million, one hundred twenty-three thousand, eight hundred twenty-six".