2660886 has 12 divisors (see below), whose sum is σ = 5765292. Its totient is φ = 886956.

The previous prime is 2660873. The next prime is 2660887. The reversal of 2660886 is 6880662.

It is a self number, because there is not a number n which added to its sum of digits gives 2660886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73896 + ... + 73931.

It is an arithmetic number, because the mean of its divisors is an integer number (480441).

2^2660886 is an apocalyptic number.

2660886 is an abundant number, since it is smaller than the sum of its proper divisors (3104406).

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

2660886 is a wasteful number, since it uses less digits than its factorization.

2660886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147835 (or 147832 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2660886 is about 1631.2222411431. Note that the first 4 decimals coincide. The cubic root of 2660886 is about 138.5719801182.

The spelling of 2660886 in words is "two million, six hundred sixty thousand, eight hundred eighty-six".