2776220 has 24 divisors (see below), whose sum is σ = 5881344. Its totient is φ = 1100736.

The previous prime is 2776217. The next prime is 2776259. The reversal of 2776220 is 226772.

2776220 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2776220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994 + ... + 3086.

It is an arithmetic number, because the mean of its divisors is an integer number (245056).

2^2776220 is an apocalyptic number.

2776220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2776220 is an abundant number, since it is smaller than the sum of its proper divisors (3105124).

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

2776220 is a wasteful number, since it uses less digits than its factorization.

2776220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 2776220 is about 1666.1992677948. The cubic root of 2776220 is about 140.5458283567.

The spelling of 2776220 in words is "two million, seven hundred seventy-six thousand, two hundred twenty".