115542728 has 32 divisors (see below), whose sum is σ = 256132800. Its totient is φ = 47810112.

The previous prime is 115542719. The next prime is 115542733. The reversal of 115542728 is 827245511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33950 + ... + 37197.

It is an arithmetic number, because the mean of its divisors is an integer number (8004150).

Almost surely, 2^115542728 is an apocalyptic number.

It is an amenable number.

115542728 is an abundant number, since it is smaller than the sum of its proper divisors (140590072).

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

115542728 is a wasteful number, since it uses less digits than its factorization.

115542728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71189 (or 71185 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 115542728 is about 10749.0803327541. The cubic root of 115542728 is about 487.0582145342.

The spelling of 115542728 in words is "one hundred fifteen million, five hundred forty-two thousand, seven hundred twenty-eight".