2138036 has 12 divisors (see below), whose sum is σ = 3754212. Its totient is φ = 1065408.

The previous prime is 2138033. The next prime is 2138093. The reversal of 2138036 is 6308312.

2138036 is digitally balanced in base 2, 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 2 ways, for example, as 1488400 + 649636 = 1220^2 + 806^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 776 + ... + 2208.

It is an arithmetic number, because the mean of its divisors is an integer number (312851).

2^2138036 is an apocalyptic number.

It is an amenable number.

2138036 is a deficient number, since it is larger than the sum of its proper divisors (1616176).

2138036 is a wasteful number, since it uses less digits than its factorization.

2138036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 1808 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2138036 is about 1462.2024483634. The cubic root of 2138036 is about 128.8264396682.

The spelling of 2138036 in words is "two million, one hundred thirty-eight thousand, thirty-six".