2766690 has 32 divisors (see below), whose sum is σ = 7378560. Its totient is φ = 737712.

The previous prime is 2766679. The next prime is 2766691. The reversal of 2766690 is 966672.

2766690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2766690² = 15309147112200, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2766691) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4854 + ... + 5393.

It is an arithmetic number, because the mean of its divisors is an integer number (230580).

2^2766690 is an apocalyptic number.

2766690 is an abundant number, since it is smaller than the sum of its proper divisors (4611870).

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

2766690 is a wasteful number, since it uses less digits than its factorization.

2766690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10263 (or 10257 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 2766690 is about 1663.3370073440. The cubic root of 2766690 is about 140.3848255936.

The spelling of 2766690 in words is "two million, seven hundred sixty-six thousand, six hundred ninety".