2112644 has 12 divisors (see below), whose sum is σ = 3752784. Its totient is φ = 1040424.

The previous prime is 2112631. The next prime is 2112683. The reversal of 2112644 is 4462112.

It is an unprimeable number.

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, 3674 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (312732).

2^2112644 is an apocalyptic number.

It is an amenable number.

2112644 is a deficient number, since it is larger than the sum of its proper divisors (1640140).

2112644 is a wasteful number, since it uses less digits than its factorization.

2112644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7954 (or 7952 counting only the distinct ones).

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

The square root of 2112644 is about 1453.4937220367. The cubic root of 2112644 is about 128.3144126076.

Adding to 2112644 its reverse (4462112), we get a palindrome (6574756).

The spelling of 2112644 in words is "two million, one hundred twelve thousand, six hundred forty-four".