1109999998 has 16 divisors (see below), whose sum is σ = 1727244000. Its totient is φ = 534359392.

The previous prime is 1109999993. The next prime is 1110000019. The reversal of 1109999998 is 8999999011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109999993) 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, 5833 + ... + 47476.

It is an arithmetic number, because the mean of its divisors is an integer number (107952750).

Almost surely, 2^1109999998 is an apocalyptic number.

1109999998 is a deficient number, since it is larger than the sum of its proper divisors (617244002).

1109999998 is a wasteful number, since it uses less digits than its factorization.

1109999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53699.

The product of its (nonzero) digits is 4251528, while the sum is 64.

The square root of 1109999998 is about 33316.6624679004. The cubic root of 1109999998 is about 1035.3988048265.

The spelling of 1109999998 in words is "one billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".