1118700978 has 16 divisors (see below), whose sum is σ = 2242986336. Its totient is φ = 371969600.

The previous prime is 1118700977. The next prime is 1118700991. The reversal of 1118700978 is 8790078111.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1118700977) 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 7 ways as a sum of consecutive naturals, for example, 230076 + ... + 234887.

It is an arithmetic number, because the mean of its divisors is an integer number (140186646).

Almost surely, 2^1118700978 is an apocalyptic number.

1118700978 is an abundant number, since it is smaller than the sum of its proper divisors (1124285358).

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

1118700978 is a wasteful number, since it uses less digits than its factorization.

1118700978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465369.

The product of its (nonzero) digits is 28224, while the sum is 42.

The square root of 1118700978 is about 33446.9875773589. The cubic root of 1118700978 is about 1038.0971671841.

The spelling of 1118700978 in words is "one billion, one hundred eighteen million, seven hundred thousand, nine hundred seventy-eight".