52388644 has 81 divisors (see below), whose sum is σ = 119772219. Its totient is φ = 19976880.

The previous prime is 52388639. The next prime is 52388647. The reversal of 52388644 is 44688325.

The square root of 52388644 is 7238.

It is a perfect power (a square), and thus also a powerful number.

52388644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 52388597 and 52388606.

It is not an unprimeable number, because it can be changed into a prime (52388647) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 1114629 + ... + 1114675.

Almost surely, 2^52388644 is an apocalyptic number.

52388644 is the 7238-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52388644

52388644 is an abundant number, since it is smaller than the sum of its proper divisors (67383575).

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

52388644 is a wasteful number, since it uses less digits than its factorization.

52388644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 67 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The cubic root of 52388644 is about 374.1786920032.

The spelling of 52388644 in words is "fifty-two million, three hundred eighty-eight thousand, six hundred forty-four".