2125644 has 24 divisors (see below), whose sum is σ = 5221440. Its totient is φ = 671184.

The previous prime is 2125621. The next prime is 2125649. The reversal of 2125644 is 4465212.

It is not an unprimeable number, because it can be changed into a prime (2125649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4434 + ... + 4889.

It is an arithmetic number, because the mean of its divisors is an integer number (217560).

2^2125644 is an apocalyptic number.

It is an amenable number.

2125644 is an abundant number, since it is smaller than the sum of its proper divisors (3095796).

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

2125644 is a wasteful number, since it uses less digits than its factorization.

2125644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9349 (or 9347 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 2125644 is about 1457.9588471558. The cubic root of 2125644 is about 128.5770657140.

The spelling of 2125644 in words is "two million, one hundred twenty-five thousand, six hundred forty-four".