532252728 has 128 divisors (see below), whose sum is σ = 1789171200. Its totient is φ = 143119872.

The previous prime is 532252717. The next prime is 532252759. The reversal of 532252728 is 827252235.

It is a happy number.

532252728 is a `hidden beast` number, since 532 + 2 + 52 + 72 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 = 532252692 and 532252701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15351 + ... + 36057.

It is an arithmetic number, because the mean of its divisors is an integer number (13977900).

Almost surely, 2^532252728 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 532252728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894585600).

532252728 is an abundant number, since it is smaller than the sum of its proper divisors (1256918472).

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

532252728 is a wasteful number, since it uses less digits than its factorization.

532252728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20746 (or 20736 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 532252728 is about 23070.6031130528. The cubic root of 532252728 is about 810.4121907585.

The spelling of 532252728 in words is "five hundred thirty-two million, two hundred fifty-two thousand, seven hundred twenty-eight".