2866860 has 48 divisors (see below), whose sum is σ = 8920800. Its totient is φ = 764352.

The previous prime is 2866847. The next prime is 2866867. The reversal of 2866860 is 686682.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2866867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2115 + ... + 3194.

It is an arithmetic number, because the mean of its divisors is an integer number (185850).

2^2866860 is an apocalyptic number.

2866860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2866860 is an abundant number, since it is smaller than the sum of its proper divisors (6053940).

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

2866860 is a wasteful number, since it uses less digits than its factorization.

2866860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327 (or 5319 counting only the distinct ones).

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

The square root of 2866860 is about 1693.1804392917. The cubic root of 2866860 is about 142.0590245925.

The spelling of 2866860 in words is "two million, eight hundred sixty-six thousand, eight hundred sixty".