564220038438 has 36 divisors (see below), whose sum is σ = 1422064792980. Its totient is φ = 161205725016.

The previous prime is 564220038433. The next prime is 564220038439. The reversal of 564220038438 is 834830022465.

564220038438 is a `hidden beast` number, since 5 + 6 + 4 + 2 + 200 + 3 + 8 + 438 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 564220038393 and 564220038402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564220038433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 319851748 + ... + 319853511.

It is an arithmetic number, because the mean of its divisors is an integer number (39501799805).

Almost surely, 2^564220038438 is an apocalyptic number.

564220038438 is an abundant number, since it is smaller than the sum of its proper divisors (857844754542).

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

564220038438 is a wasteful number, since it uses less digits than its factorization.

564220038438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639705281 (or 639705271 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 564220038438 in words is "five hundred sixty-four billion, two hundred twenty million, thirty-eight thousand, four hundred thirty-eight".