115030728 has 48 divisors (see below), whose sum is σ = 325091520. Its totient is φ = 36675936.

The previous prime is 115030717. The next prime is 115030757. The reversal of 115030728 is 827030511.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33076 + ... + 36387.

It is an arithmetic number, because the mean of its divisors is an integer number (6772740).

Almost surely, 2^115030728 is an apocalyptic number.

115030728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

115030728 is an abundant number, since it is smaller than the sum of its proper divisors (210060792).

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

115030728 is a wasteful number, since it uses less digits than its factorization.

115030728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69498 (or 69491 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 115030728 is about 10725.2378994594. The cubic root of 115030728 is about 486.3377218747.

It can be divided in two parts, 1150 and 30728, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 115030728 in words is "one hundred fifteen million, thirty thousand, seven hundred twenty-eight".