116685288 has 24 divisors (see below), whose sum is σ = 316022850. Its totient is φ = 38895072.

The previous prime is 116685227. The next prime is 116685293. The reversal of 116685288 is 882586611.

116685288 is a `hidden beast` number, since 116 + 6 + 8 + 528 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59259204 + 57426084 = 7698^2 + 7578^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×116685288³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 810243 + ... + 810386.

Almost surely, 2^116685288 is an apocalyptic number.

116685288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

116685288 is an abundant number, since it is smaller than the sum of its proper divisors (199337562).

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

116685288 is a wasteful number, since it uses less digits than its factorization.

116685288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620641 (or 1620634 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 116685288 is about 10802.0964631871. The cubic root of 116685288 is about 488.6583986817.

The spelling of 116685288 in words is "one hundred sixteen million, six hundred eighty-five thousand, two hundred eighty-eight".