2128626 has 16 divisors (see below), whose sum is σ = 4730400. Its totient is φ = 709524.

The previous prime is 2128603. The next prime is 2128631. The reversal of 2128626 is 6268212.

2128626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2128626.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19656 + ... + 19763.

It is an arithmetic number, because the mean of its divisors is an integer number (295650).

2^2128626 is an apocalyptic number.

2128626 is an abundant number, since it is smaller than the sum of its proper divisors (2601774).

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

2128626 is a wasteful number, since it uses less digits than its factorization.

2128626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39430 (or 39424 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2128626 is about 1458.9811513519. The cubic root of 2128626 is about 128.6371632116.

It can be divided in two parts, 21286 and 26, that added together give a palindrome (21312).

The spelling of 2128626 in words is "two million, one hundred twenty-eight thousand, six hundred twenty-six".