2666988 has 36 divisors (see below), whose sum is σ = 7036848. Its totient is φ = 850080.

The previous prime is 2666987. The next prime is 2667019. The reversal of 2666988 is 8896662.

2666988 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 tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2666988² = 14225649984288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666987) 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 11 ways as a sum of consecutive naturals, for example, 783 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (195468).

2^2666988 is an apocalyptic number.

It is an amenable number.

2666988 is an abundant number, since it is smaller than the sum of its proper divisors (4369860).

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

2666988 is a wasteful number, since it uses less digits than its factorization.

2666988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254 (or 3249 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 2666988 is about 1633.0915467297. The cubic root of 2666988 is about 138.6778246487.

The spelling of 2666988 in words is "two million, six hundred sixty-six thousand, nine hundred eighty-eight".