52388424 has 128 divisors (see below), whose sum is σ = 168220800. Its totient is φ = 14929920.

The previous prime is 52388383. The next prime is 52388429. The reversal of 52388424 is 42488325.

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

It is not an unprimeable number, because it can be changed into a prime (52388429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39744 + ... + 41040.

It is an arithmetic number, because the mean of its divisors is an integer number (1314225).

Almost surely, 2^52388424 is an apocalyptic number.

52388424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52388424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84110400).

52388424 is an abundant number, since it is smaller than the sum of its proper divisors (115832376).

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

52388424 is a wasteful number, since it uses less digits than its factorization.

52388424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1330 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 52388424 is about 7237.9848024157. The cubic root of 52388424 is about 374.1781682292.

Subtracting from 52388424 its reverse (42488325), we obtain a palindrome (9900099).

The spelling of 52388424 in words is "fifty-two million, three hundred eighty-eight thousand, four hundred twenty-four".