115742228 has 24 divisors (see below), whose sum is σ = 232670592. Its totient is φ = 49349664.

The previous prime is 115742213. The next prime is 115742261. The reversal of 115742228 is 822247511.

115742228 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

115742228 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 115742194 and 115742203.

It is a congruent number.

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, 4976 + ... + 16007.

It is an arithmetic number, because the mean of its divisors is an integer number (9694608).

Almost surely, 2^115742228 is an apocalyptic number.

It is an amenable number.

115742228 is an abundant number, since it is smaller than the sum of its proper divisors (116928364).

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

115742228 is a wasteful number, since it uses less digits than its factorization.

115742228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21191 (or 21189 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 115742228 is about 10758.3561941404. The cubic root of 115742228 is about 487.3383771040.

Adding to 115742228 its reverse (822247511), we get a palindrome (937989739).

The spelling of 115742228 in words is "one hundred fifteen million, seven hundred forty-two thousand, two hundred twenty-eight".