5644404 has 36 divisors (see below), whose sum is σ = 14798784. Its totient is φ = 1881144.

The previous prime is 5644399. The next prime is 5644409. The reversal of 5644404 is 4044465.

It is an interprime number because it is at equal distance from previous prime (5644399) and next prime (5644409).

It is a tau number, because it is divible by the number of its divisors (36).

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

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 11 ways as a sum of consecutive naturals, for example, 1932 + ... + 3875.

Almost surely, 2^5644404 is an apocalyptic number.

5644404 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5644404 is an abundant number, since it is smaller than the sum of its proper divisors (9154380).

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

5644404 is a wasteful number, since it uses less digits than its factorization.

5644404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826 (or 5812 counting only the distinct ones).

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

The square root of 5644404 is about 2375.7954457402. The cubic root of 5644404 is about 178.0489281815.

Adding to 5644404 its reverse (4044465), we get a palindrome (9688869).

The spelling of 5644404 in words is "five million, six hundred forty-four thousand, four hundred four".