52386444 has 72 divisors (see below), whose sum is σ = 145297152. Its totient is φ = 15782880.

The previous prime is 52386409. The next prime is 52386457. The reversal of 52386444 is 44468325.

52386444 is a `hidden beast` number, since 5 + 2 + 3 + 8 + 644 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52386399 and 52386408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103897 + ... + 104399.

It is an arithmetic number, because the mean of its divisors is an integer number (2018016).

Almost surely, 2^52386444 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 52386444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72648576).

52386444 is an abundant number, since it is smaller than the sum of its proper divisors (92910708).

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

52386444 is a wasteful number, since it uses less digits than its factorization.

52386444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 782 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 52386444 is about 7237.8480227206. The cubic root of 52386444 is about 374.1734541973.

The spelling of 52386444 in words is "fifty-two million, three hundred eighty-six thousand, four hundred forty-four".