2821126 has 24 divisors (see below), whose sum is σ = 5372136. Its totient is φ = 1098720.

The previous prime is 2821109. The next prime is 2821141. The reversal of 2821126 is 6211282.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2821097 and 2821106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231 + ... + 2386.

It is an arithmetic number, because the mean of its divisors is an integer number (223839).

2^2821126 is an apocalyptic number.

2821126 is a deficient number, since it is larger than the sum of its proper divisors (2551010).

2821126 is a wasteful number, since it uses less digits than its factorization.

2821126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644 (or 2637 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 2821126 is about 1679.6207905358. The cubic root of 2821126 is about 141.2995659708.

It can be divided in two parts, 2 and 821126, that added together give a palindrome (821128).

The spelling of 2821126 in words is "two million, eight hundred twenty-one thousand, one hundred twenty-six".