115837638 has 32 divisors (see below), whose sum is σ = 273315840. Its totient is φ = 32028480.

The previous prime is 115837627. The next prime is 115837649. The reversal of 115837638 is 836738511.

It is an interprime number because it is at equal distance from previous prime (115837627) and next prime (115837649).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 115837638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43183 + ... + 45786.

It is an arithmetic number, because the mean of its divisors is an integer number (8541120).

Almost surely, 2^115837638 is an apocalyptic number.

115837638 is an abundant number, since it is smaller than the sum of its proper divisors (157478202).

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

115837638 is a wasteful number, since it uses less digits than its factorization.

115837638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89012.

The product of its digits is 120960, while the sum is 42.

The square root of 115837638 is about 10762.7895083013. The cubic root of 115837638 is about 487.4722498339.

The spelling of 115837638 in words is "one hundred fifteen million, eight hundred thirty-seven thousand, six hundred thirty-eight".