2779122 has 16 divisors (see below), whose sum is σ = 5608800. Its totient is φ = 917952.

The previous prime is 2779097. The next prime is 2779129. The reversal of 2779122 is 2219772.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2779122.

It is not an unprimeable number, because it can be changed into a prime (2779129) by changing a digit.

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, 1372 + ... + 2727.

It is an arithmetic number, because the mean of its divisors is an integer number (350550).

2^2779122 is an apocalyptic number.

2779122 is an abundant number, since it is smaller than the sum of its proper divisors (2829678).

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

2779122 is a wasteful number, since it uses less digits than its factorization.

2779122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217.

The product of its digits is 3528, while the sum is 30.

The square root of 2779122 is about 1667.0698845579. The cubic root of 2779122 is about 140.5947824456.

The spelling of 2779122 in words is "two million, seven hundred seventy-nine thousand, one hundred twenty-two".