115040778 has 8 divisors (see below), whose sum is σ = 230081568. Its totient is φ = 38346924.

The previous prime is 115040771. The next prime is 115040797. The reversal of 115040778 is 877040511.

It is a sphenic number, since it is the product of 3 distinct primes.

115040778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (115040771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9586726 + ... + 9586737.

It is an arithmetic number, because the mean of its divisors is an integer number (28760196).

Almost surely, 2^115040778 is an apocalyptic number.

115040778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

115040778 is a wasteful number, since it uses less digits than its factorization.

115040778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19173468.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 115040778 is about 10725.7064103023. The cubic root of 115040778 is about 486.3518849070.

The spelling of 115040778 in words is "one hundred fifteen million, forty thousand, seven hundred seventy-eight".