5641644 has 24 divisors (see below), whose sum is σ = 13227760. Its totient is φ = 1871424.

The previous prime is 5641633. The next prime is 5641661. The reversal of 5641644 is 4461465.

5641644 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1722 + ... + 3774.

Almost surely, 2^5641644 is an apocalyptic number.

It is an amenable number.

5641644 is an abundant number, since it is smaller than the sum of its proper divisors (7586116).

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

5641644 is a wasteful number, since it uses less digits than its factorization.

5641644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289 (or 2287 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 5641644 is about 2375.2145166279. The cubic root of 5641644 is about 178.0199026687.

The spelling of 5641644 in words is "five million, six hundred forty-one thousand, six hundred forty-four".