5644408 has 96 divisors (see below), whose sum is σ = 14364000. Its totient is φ = 2069760.

The previous prime is 5644399. The next prime is 5644409. The reversal of 5644408 is 8044465.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 5644408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 332016 + ... + 332032.

It is an arithmetic number, because the mean of its divisors is an integer number (149625).

Almost surely, 2^5644408 is an apocalyptic number.

5644408 is the 1372-nd octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5644408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7182000).

5644408 is an abundant number, since it is smaller than the sum of its proper divisors (8719592).

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

5644408 is a wasteful number, since it uses less digits than its factorization.

5644408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 5644408 is about 2375.7962875634. The cubic root of 5644408 is about 178.0489702406.

The spelling of 5644408 in words is "five million, six hundred forty-four thousand, four hundred eight".