115619028 has 144 divisors (see below), whose sum is σ = 337075200. Its totient is φ = 30663360.

The previous prime is 115619017. The next prime is 115619041. The reversal of 115619028 is 820916511.

It is a self number, because there is not a number n which added to its sum of digits gives 115619028.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 882523 + ... + 882653.

It is an arithmetic number, because the mean of its divisors is an integer number (2340800).

Almost surely, 2^115619028 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 115619028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168537600).

115619028 is an abundant number, since it is smaller than the sum of its proper divisors (221456172).

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

115619028 is a wasteful number, since it uses less digits than its factorization.

115619028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 115619028 is about 10752.6288878581. The cubic root of 115619028 is about 487.1654024844.

The spelling of 115619028 in words is "one hundred fifteen million, six hundred nineteen thousand, twenty-eight".