52728324 has 48 divisors (see below), whose sum is σ = 135051840. Its totient is φ = 15879040.

The previous prime is 52728311. The next prime is 52728329. The reversal of 52728324 is 42382725.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (52728329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21682 + ... + 23990.

It is an arithmetic number, because the mean of its divisors is an integer number (2813580).

Almost surely, 2^52728324 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 52728324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67525920).

52728324 is an abundant number, since it is smaller than the sum of its proper divisors (82323516).

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

52728324 is a wasteful number, since it uses less digits than its factorization.

52728324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500 (or 2498 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 52728324 is about 7261.4271324582. The cubic root of 52728324 is about 374.9856563403.

The spelling of 52728324 in words is "fifty-two million, seven hundred twenty-eight thousand, three hundred twenty-four".