2128368 has 80 divisors (see below), whose sum is σ = 6249600. Its totient is φ = 618240.

The previous prime is 2128333. The next prime is 2128381. The reversal of 2128368 is 8638212.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15243 + ... + 15381.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2^2128368 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 2128368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3124800).

2128368 is an abundant number, since it is smaller than the sum of its proper divisors (4121232).

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

2128368 is a wasteful number, since it uses less digits than its factorization.

2128368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 184 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 2128368 is about 1458.8927308065. The cubic root of 2128368 is about 128.6319658481.

The spelling of 2128368 in words is "two million, one hundred twenty-eight thousand, three hundred sixty-eight".