2138204 has 12 divisors (see below), whose sum is σ = 3754800. Its totient is φ = 1065408.

The previous prime is 2138197. The next prime is 2138207. The reversal of 2138204 is 4028312.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 3³ + 8⁵ + 2²¹ + 0 + 4³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692 + ... + 2180.

It is an arithmetic number, because the mean of its divisors is an integer number (312900).

2^2138204 is an apocalyptic number.

It is an amenable number.

2138204 is a deficient number, since it is larger than the sum of its proper divisors (1616596).

2138204 is a wasteful number, since it uses less digits than its factorization.

2138204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2138204 is about 1462.2598948203. The cubic root of 2138204 is about 128.8298138357.

The spelling of 2138204 in words is "two million, one hundred thirty-eight thousand, two hundred four".