115680290 has 16 divisors (see below), whose sum is σ = 227154240. Its totient is φ = 42065520.

The previous prime is 115680289. The next prime is 115680307. The reversal of 115680290 is 92086511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525710 + ... + 525929.

It is an arithmetic number, because the mean of its divisors is an integer number (14197140).

Almost surely, 2^115680290 is an apocalyptic number.

115680290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115680290 is a deficient number, since it is larger than the sum of its proper divisors (111473950).

115680290 is a wasteful number, since it uses less digits than its factorization.

115680290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051657.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 115680290 is about 10755.4772093106. The cubic root of 115680290 is about 487.2514305883.

The spelling of 115680290 in words is "one hundred fifteen million, six hundred eighty thousand, two hundred ninety".