116831638 has 32 divisors (see below), whose sum is σ = 219656448. Its totient is φ = 45276000.

The previous prime is 116831621. The next prime is 116831657. The reversal of 116831638 is 836138611.

It is a junction number, because it is equal to n+sod(n) for n = 116831597 and 116831606.

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, 28413 + ... + 32263.

It is an arithmetic number, because the mean of its divisors is an integer number (6864264).

Almost surely, 2^116831638 is an apocalyptic number.

116831638 is a deficient number, since it is larger than the sum of its proper divisors (102824810).

116831638 is a wasteful number, since it uses less digits than its factorization.

116831638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068.

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

The square root of 116831638 is about 10808.8684884219. The cubic root of 116831638 is about 488.8626097406.

The spelling of 116831638 in words is "one hundred sixteen million, eight hundred thirty-one thousand, six hundred thirty-eight".