1118202978 has 8 divisors (see below), whose sum is σ = 2236405968. Its totient is φ = 372734324.

The previous prime is 1118202961. The next prime is 1118202979. The reversal of 1118202978 is 8792028111.

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

1118202978 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1118202979) 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, 93183576 + ... + 93183587.

It is an arithmetic number, because the mean of its divisors is an integer number (279550746).

Almost surely, 2^1118202978 is an apocalyptic number.

1118202978 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.

1118202978 is a wasteful number, since it uses less digits than its factorization.

1118202978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186367168.

The product of its (nonzero) digits is 16128, while the sum is 39.

The square root of 1118202978 is about 33439.5421320328. The cubic root of 1118202978 is about 1037.9431048296.

The spelling of 1118202978 in words is "one billion, one hundred eighteen million, two hundred two thousand, nine hundred seventy-eight".