2023636 has 12 divisors (see below), whose sum is σ = 3577140. Its totient is φ = 1001600.

The previous prime is 2023621. The next prime is 2023639. The reversal of 2023636 is 6363202.

It can be written as a sum of positive squares in 2 ways, for example, as 1547536 + 476100 = 1244^2 + 690^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023639) 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, 2101 + ... + 2908.

It is an arithmetic number, because the mean of its divisors is an integer number (298095).

2^2023636 is an apocalyptic number.

It is an amenable number.

2023636 is a deficient number, since it is larger than the sum of its proper divisors (1553504).

2023636 is a wasteful number, since it uses less digits than its factorization.

2023636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114 (or 5112 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 2023636 is about 1422.5456055958. The cubic root of 2023636 is about 126.4864874358.

Adding to 2023636 its reverse (6363202), we get a palindrome (8386838).

The spelling of 2023636 in words is "two million, twenty-three thousand, six hundred thirty-six".