52433728 has 28 divisors (see below), whose sum is σ = 104883712. Its totient is φ = 26006400.

The previous prime is 52433701. The next prime is 52433743. The reversal of 52433728 is 82733425.

52433728 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 52433693 and 52433702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4903 + ... + 11353.

Almost surely, 2^52433728 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 52433728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52441856).

52433728 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52433728 is a wasteful number, since it uses less digits than its factorization.

52433728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590 (or 6580 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 52433728 is about 7241.1137264926. The cubic root of 52433728 is about 374.2859966533.

The spelling of 52433728 in words is "fifty-two million, four hundred thirty-three thousand, seven hundred twenty-eight".