5638573040 has 20 divisors (see below), whose sum is σ = 13109682504. Its totient is φ = 2255429184.

The previous prime is 5638573021. The next prime is 5638573049. The reversal of 5638573040 is 403758365.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638573049) 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, 35241002 + ... + 35241161.

Almost surely, 2^5638573040 is an apocalyptic number.

It is an amenable number.

5638573040 is an abundant number, since it is smaller than the sum of its proper divisors (7471109464).

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

5638573040 is a wasteful number, since it uses less digits than its factorization.

5638573040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70482176 (or 70482170 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 5638573040 is about 75090.4324131910. The cubic root of 5638573040 is about 1779.8759581954.

The spelling of 5638573040 in words is "five billion, six hundred thirty-eight million, five hundred seventy-three thousand, forty".