52308728 has 16 divisors (see below), whose sum is σ = 103848480. Its totient is φ = 24615808.

The previous prime is 52308727. The next prime is 52308731. The reversal of 52308728 is 82780325.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52308727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192176 + ... + 192447.

It is an arithmetic number, because the mean of its divisors is an integer number (6490530).

Almost surely, 2^52308728 is an apocalyptic number.

It is an amenable number.

52308728 is a deficient number, since it is larger than the sum of its proper divisors (51539752).

52308728 is a wasteful number, since it uses less digits than its factorization.

52308728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384646 (or 384642 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 52308728 is about 7232.4773072579. The cubic root of 52308728 is about 373.9883321591.

The spelling of 52308728 in words is "fifty-two million, three hundred eight thousand, seven hundred twenty-eight".