2112636 has 12 divisors (see below), whose sum is σ = 4929512. Its totient is φ = 704208.

The previous prime is 2112631. The next prime is 2112683. The reversal of 2112636 is 6362112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88015 + ... + 88038.

2^2112636 is an apocalyptic number.

It is an amenable number.

2112636 is an abundant number, since it is smaller than the sum of its proper divisors (2816876).

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

2112636 is a wasteful number, since it uses less digits than its factorization.

2112636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176060 (or 176058 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 2112636 is about 1453.4909700442. The cubic root of 2112636 is about 128.3142506436.

Adding to 2112636 its reverse (6362112), we get a palindrome (8474748).

It can be divided in two parts, 21 and 12636, that multiplied together give a triangular number (265356 = T₇₂₈).

The spelling of 2112636 in words is "two million, one hundred twelve thousand, six hundred thirty-six".