5640264 has 144 divisors (see below), whose sum is σ = 19019520. Its totient is φ = 1477440.

The previous prime is 5640253. The next prime is 5640281. The reversal of 5640264 is 4620465.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 181929 + ... + 181959.

It is an arithmetic number, because the mean of its divisors is an integer number (132080).

Almost surely, 2^5640264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5640264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9509760).

5640264 is an abundant number, since it is smaller than the sum of its proper divisors (13379256).

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

5640264 is a wasteful number, since it uses less digits than its factorization.

5640264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 5640264 is about 2374.9239987840. The cubic root of 5640264 is about 178.0053863623.

The spelling of 5640264 in words is "five million, six hundred forty thousand, two hundred sixty-four".