5640028640 has 24 divisors (see below), whose sum is σ = 13324568040. Its totient is φ = 2256011392.

The previous prime is 5640028637. The next prime is 5640028643. The reversal of 5640028640 is 468200465.

It is an interprime number because it is at equal distance from previous prime (5640028637) and next prime (5640028643).

It is a self number, because there is not a number n which added to its sum of digits gives 5640028640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640028643) 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, 17624930 + ... + 17625249.

It is an arithmetic number, because the mean of its divisors is an integer number (555190335).

Almost surely, 2^5640028640 is an apocalyptic number.

It is an amenable number.

5640028640 is an abundant number, since it is smaller than the sum of its proper divisors (7684539400).

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

5640028640 is a wasteful number, since it uses less digits than its factorization.

5640028640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35250194 (or 35250186 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 5640028640 is about 75100.1241010959. The cubic root of 5640028640 is about 1780.0291035935.

The spelling of 5640028640 in words is "five billion, six hundred forty million, twenty-eight thousand, six hundred forty".