2840126 has 4 divisors (see below), whose sum is σ = 4260192. Its totient is φ = 1420062.

The previous prime is 2840119. The next prime is 2840161. The reversal of 2840126 is 6210482.

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

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 710030 + ... + 710033.

It is an arithmetic number, because the mean of its divisors is an integer number (1065048).

2^2840126 is an apocalyptic number.

2840126 is a deficient number, since it is larger than the sum of its proper divisors (1420066).

2840126 is a wasteful number, since it uses less digits than its factorization.

2840126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420065.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2840126 is about 1685.2673378429. The cubic root of 2840126 is about 141.6160692819.

The spelling of 2840126 in words is "two million, eight hundred forty thousand, one hundred twenty-six".