5645404 has 12 divisors (see below), whose sum is σ = 9958144. Its totient is φ = 2800224.

The previous prime is 5645383. The next prime is 5645407. The reversal of 5645404 is 4045465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5049 + ... + 6064.

Almost surely, 2^5645404 is an apocalyptic number.

It is an amenable number.

5645404 is a deficient number, since it is larger than the sum of its proper divisors (4312740).

5645404 is a wasteful number, since it uses less digits than its factorization.

5645404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11244 (or 11242 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 5645404 is about 2376.0058922486. The cubic root of 5645404 is about 178.0594423364.

Subtracting from 5645404 its sum of digits (28), we obtain a square (5645376 = 2376²).

The spelling of 5645404 in words is "five million, six hundred forty-five thousand, four hundred four".