52840732 has 12 divisors (see below), whose sum is σ = 105681520. Its totient is φ = 22646016.

The previous prime is 52840727. The next prime is 52840741. The reversal of 52840732 is 23704825.

52840732 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 52840694 and 52840703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943557 + ... + 943612.

Almost surely, 2^52840732 is an apocalyptic number.

It is an amenable number.

52840732 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.

52840732 is a wasteful number, since it uses less digits than its factorization.

52840732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887180 (or 1887178 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 52840732 is about 7269.1630880040. The cubic root of 52840732 is about 375.2519361853.

The spelling of 52840732 in words is "fifty-two million, eight hundred forty thousand, seven hundred thirty-two".