2128700 has 36 divisors (see below), whose sum is σ = 5280912. Its totient is φ = 729600.

The previous prime is 2128697. The next prime is 2128727. The reversal of 2128700 is 78212.

2128700 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 (20).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 821 + ... + 2220.

It is an arithmetic number, because the mean of its divisors is an integer number (146692).

2^2128700 is an apocalyptic number.

2128700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2128700 is an abundant number, since it is smaller than the sum of its proper divisors (3152212).

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

2128700 is a wasteful number, since it uses less digits than its factorization.

2128700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062 (or 3055 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2128700 is about 1459.0065112946. The cubic root of 2128700 is about 128.6386538507.

The spelling of 2128700 in words is "two million, one hundred twenty-eight thousand, seven hundred".