116640312 has 16 divisors (see below), whose sum is σ = 291600840. Its totient is φ = 38880096.

The previous prime is 116640311. The next prime is 116640313. The reversal of 116640312 is 213046611.

It is an interprime number because it is at equal distance from previous prime (116640311) and next prime (116640313).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 4860013 = 116640312 / (1 + 1 + 6 + 6 + 4 + 0 + 3 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116640311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2429983 + ... + 2430030.

Almost surely, 2^116640312 is an apocalyptic number.

116640312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

116640312 is an abundant number, since it is smaller than the sum of its proper divisors (174960528).

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

116640312 is a wasteful number, since it uses less digits than its factorization.

116640312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4860022 (or 4860018 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 116640312 is about 10800.0144444348. The cubic root of 116640312 is about 488.5956066340.

Adding to 116640312 its reverse (213046611), we get a palindrome (329686923).

The spelling of 116640312 in words is "one hundred sixteen million, six hundred forty thousand, three hundred twelve".