5638754240 has 112 divisors (see below), whose sum is σ = 15481962432. Its totient is φ = 1916092416.

The previous prime is 5638754201. The next prime is 5638754243. The reversal of 5638754240 is 424578365.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 5638754191 and 5638754200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638754243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241982 + ... + 264258.

Almost surely, 2^5638754240 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 5638754240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7740981216).

5638754240 is an abundant number, since it is smaller than the sum of its proper divisors (9843208192).

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

5638754240 is a wasteful number, since it uses less digits than its factorization.

5638754240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22414 (or 22404 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The square root of 5638754240 is about 75091.6389486872. The cubic root of 5638754240 is about 1779.8950238979.

The spelling of 5638754240 in words is "five billion, six hundred thirty-eight million, seven hundred fifty-four thousand, two hundred forty".