5638626 has 48 divisors (see below), whose sum is σ = 14582880. Its totient is φ = 1610280.

The previous prime is 5638613. The next prime is 5638631. The reversal of 5638626 is 6268365.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1581 + ... + 3711.

It is an arithmetic number, because the mean of its divisors is an integer number (303810).

Almost surely, 2^5638626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5638626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7291440).

5638626 is an abundant number, since it is smaller than the sum of its proper divisors (8944254).

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

5638626 is a wasteful number, since it uses less digits than its factorization.

5638626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156 (or 2143 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 5638626 is about 2374.5791206022. The cubic root of 5638626 is about 177.9881530642.

The spelling of 5638626 in words is "five million, six hundred thirty-eight thousand, six hundred twenty-six".