2128886 has 8 divisors (see below), whose sum is σ = 3210624. Its totient is φ = 1058680.

The previous prime is 2128873. The next prime is 2128891. The reversal of 2128886 is 6888212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2405 + ... + 3168.

It is an arithmetic number, because the mean of its divisors is an integer number (401328).

2^2128886 is an apocalyptic number.

2128886 is a deficient number, since it is larger than the sum of its proper divisors (1081738).

2128886 is a wasteful number, since it uses less digits than its factorization.

2128886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5766.

The product of its digits is 12288, while the sum is 35.

The square root of 2128886 is about 1459.0702519070. The cubic root of 2128886 is about 128.6424004398.

It can be divided in two parts, 21 and 28886, that multiplied together give a palindrome (606606).

The spelling of 2128886 in words is "two million, one hundred twenty-eight thousand, eight hundred eighty-six".