2101828 has 6 divisors (see below), whose sum is σ = 3678206. Its totient is φ = 1050912.

The previous prime is 2101823. The next prime is 2101843. The reversal of 2101828 is 8281012.

2101828 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1085764 + 1016064 = 1042^2 + 1008^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2101799 and 2101808.

It is not an unprimeable number, because it can be changed into a prime (2101823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262725 + ... + 262732.

2^2101828 is an apocalyptic number.

It is an amenable number.

2101828 is a deficient number, since it is larger than the sum of its proper divisors (1576378).

2101828 is a wasteful number, since it uses less digits than its factorization.

2101828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525461 (or 525459 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 2101828 is about 1449.7682573432. The cubic root of 2101828 is about 128.0950628449.

The spelling of 2101828 in words is "two million, one hundred one thousand, eight hundred twenty-eight".