2842109 has 4 divisors (see below), whose sum is σ = 2881116. Its totient is φ = 2803104.

The previous prime is 2842097. The next prime is 2842127. The reversal of 2842109 is 9012482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 2316484 = 725^2 + 1522^2 .

It is a cyclic number.

It is not a de Polignac number, because 2842109 - 2¹² = 2838013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19394 + ... + 19539.

It is an arithmetic number, because the mean of its divisors is an integer number (720279).

2^2842109 is an apocalyptic number.

It is an amenable number.

2842109 is a deficient number, since it is larger than the sum of its proper divisors (39007).

2842109 is an equidigital number, since it uses as much as digits as its factorization.

2842109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39006.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2842109 is about 1685.8555691399. The cubic root of 2842109 is about 141.6490207933.

The spelling of 2842109 in words is "two million, eight hundred forty-two thousand, one hundred nine".