5640228040 has 96 divisors (see below), whose sum is σ = 13916678400. Its totient is φ = 2054753280.

The previous prime is 5640228037. The next prime is 5640228053. The reversal of 5640228040 is 408220465.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 5640227993 and 5640228011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350491 + ... + 366229.

It is an arithmetic number, because the mean of its divisors is an integer number (144965400).

Almost surely, 2^5640228040 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 5640228040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6958339200).

5640228040 is an abundant number, since it is smaller than the sum of its proper divisors (8276450360).

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

5640228040 is a wasteful number, since it uses less digits than its factorization.

5640228040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15815 (or 15794 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 5640228040 is about 75101.4516504175. The cubic root of 5640228040 is about 1780.0500806513.

The spelling of 5640228040 in words is "five billion, six hundred forty million, two hundred twenty-eight thousand, forty".