116631388 has 48 divisors (see below), whose sum is σ = 219088800. Its totient is φ = 54225920.

The previous prime is 116631371. The next prime is 116631397. The reversal of 116631388 is 883136611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651483 + ... + 651661.

It is an arithmetic number, because the mean of its divisors is an integer number (4564350).

Almost surely, 2^116631388 is an apocalyptic number.

It is an amenable number.

116631388 is a deficient number, since it is larger than the sum of its proper divisors (102457412).

116631388 is a wasteful number, since it uses less digits than its factorization.

116631388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 388 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 116631388 is about 10799.6012889366. The cubic root of 116631388 is about 488.5831457094.

Adding to 116631388 its reverse (883136611), we get a palindrome (999767999).

The spelling of 116631388 in words is "one hundred sixteen million, six hundred thirty-one thousand, three hundred eighty-eight".