52644438 has 96 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 13662000.

The previous prime is 52644413. The next prime is 52644457. The reversal of 52644438 is 83444625.

52644438 is a `hidden beast` number, since 5 + 2 + 644 + 4 + 3 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45163 + ... + 46313.

It is an arithmetic number, because the mean of its divisors is an integer number (1532160).

Almost surely, 2^52644438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52644438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73543680).

52644438 is an abundant number, since it is smaller than the sum of its proper divisors (94442922).

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

52644438 is a wasteful number, since it uses less digits than its factorization.

52644438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1174 counting only the distinct ones).

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

The square root of 52644438 is about 7255.6486960161. The cubic root of 52644438 is about 374.7866946919.

The spelling of 52644438 in words is "fifty-two million, six hundred forty-four thousand, four hundred thirty-eight".