115804638 has 12 divisors (see below), whose sum is σ = 250910088. Its totient is φ = 38601540.

The previous prime is 115804631. The next prime is 115804673. The reversal of 115804638 is 836408511.

115804638 is a `hidden beast` number, since 1 + 1 + 580 + 46 + 38 = 666.

It is a super-2 number, since 2×115804638² = 26821428364622088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115804631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3216778 + ... + 3216813.

It is an arithmetic number, because the mean of its divisors is an integer number (20909174).

Almost surely, 2^115804638 is an apocalyptic number.

115804638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

115804638 is an abundant number, since it is smaller than the sum of its proper divisors (135105450).

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

115804638 is a wasteful number, since it uses less digits than its factorization.

115804638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433599 (or 6433596 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 115804638 is about 10761.2563392942. The cubic root of 115804638 is about 487.4259548290.

The spelling of 115804638 in words is "one hundred fifteen million, eight hundred four thousand, six hundred thirty-eight".