2538866 has 16 divisors (see below), whose sum is σ = 4268160. Its totient is φ = 1122480.

The previous prime is 2538839. The next prime is 2538871. The reversal of 2538866 is 6688352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746 + ... + 2373.

It is an arithmetic number, because the mean of its divisors is an integer number (266760).

2^2538866 is an apocalyptic number.

2538866 is a deficient number, since it is larger than the sum of its proper divisors (1729294).

2538866 is a wasteful number, since it uses less digits than its factorization.

2538866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169.

The product of its digits is 69120, while the sum is 38.

The square root of 2538866 is about 1593.3819378919. The cubic root of 2538866 is about 136.4205909696.

It can be divided in two parts, 253 and 8866, that added together give a palindrome (9119).

The spelling of 2538866 in words is "two million, five hundred thirty-eight thousand, eight hundred sixty-six".