115729228 has 48 divisors (see below), whose sum is σ = 220147200. Its totient is φ = 53058240.

The previous prime is 115729223. The next prime is 115729241. The reversal of 115729228 is 822927511.

It is not an unprimeable number, because it can be changed into a prime (115729223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639298 + ... + 639478.

It is an arithmetic number, because the mean of its divisors is an integer number (4586400).

Almost surely, 2^115729228 is an apocalyptic number.

It is an amenable number.

115729228 is a deficient number, since it is larger than the sum of its proper divisors (104417972).

115729228 is a wasteful number, since it uses less digits than its factorization.

115729228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 428 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 115729228 is about 10757.7519956541. The cubic root of 115729228 is about 487.3201307064.

The spelling of 115729228 in words is "one hundred fifteen million, seven hundred twenty-nine thousand, two hundred twenty-eight".