5640144 has 20 divisors (see below), whose sum is σ = 14570496. Its totient is φ = 1880032.

The previous prime is 5640119. The next prime is 5640149. The reversal of 5640144 is 4410465.

It is a super-2 number, since 2×5640144² = 63622448681472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 58704 + ... + 58799.

Almost surely, 2^5640144 is an apocalyptic number.

It is an amenable number.

5640144 is an abundant number, since it is smaller than the sum of its proper divisors (8930352).

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

5640144 is a wasteful number, since it uses less digits than its factorization.

5640144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117514 (or 117508 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 5640144 is about 2374.8987346832. The cubic root of 5640144 is about 178.0041239629.

The spelling of 5640144 in words is "five million, six hundred forty thousand, one hundred forty-four".