5404644 has 60 divisors (see below), whose sum is σ = 16153984. Its totient is φ = 1543536.

The previous prime is 5404603. The next prime is 5404673. The reversal of 5404644 is 4464045.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1077 + ... + 3459.

Almost surely, 2^5404644 is an apocalyptic number.

5404644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5404644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8076992).

5404644 is an abundant number, since it is smaller than the sum of its proper divisors (10749340).

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

5404644 is a wasteful number, since it uses less digits than its factorization.

5404644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 5404644 is about 2324.7890226857. The cubic root of 5404644 is about 175.4913429874.

Adding to 5404644 its reverse (4464045), we get a palindrome (9868689).

It can be divided in two parts, 540 and 4644, that added together give a square (5184 = 72²).

The spelling of 5404644 in words is "five million, four hundred four thousand, six hundred forty-four".