115709280 has 48 divisors (see below), whose sum is σ = 364485744. Its totient is φ = 30855680.

The previous prime is 115709233. The next prime is 115709303. The reversal of 115709280 is 82907511.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 120051 + ... + 121010.

It is an arithmetic number, because the mean of its divisors is an integer number (7593453).

Almost surely, 2^115709280 is an apocalyptic number.

115709280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115709280 is an abundant number, since it is smaller than the sum of its proper divisors (248776464).

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

115709280 is a wasteful number, since it uses less digits than its factorization.

115709280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241079 (or 241071 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 115709280 is about 10756.8248103239. The cubic root of 115709280 is about 487.2921296540.

The spelling of 115709280 in words is "one hundred fifteen million, seven hundred nine thousand, two hundred eighty".