2128336 has 40 divisors (see below), whose sum is σ = 4872704. Its totient is φ = 881280.

The previous prime is 2128333. The next prime is 2128381. The reversal of 2128336 is 6338212.

It is a self number, because there is not a number n which added to its sum of digits gives 2128336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3166 + ... + 3778.

2^2128336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2128336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2436352).

2128336 is an abundant number, since it is smaller than the sum of its proper divisors (2744368).

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

2128336 is a wasteful number, since it uses less digits than its factorization.

2128336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 653 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 2128336 is about 1458.8817635436. The cubic root of 2128336 is about 128.6313211846.

The spelling of 2128336 in words is "two million, one hundred twenty-eight thousand, three hundred thirty-six".