1111000998 has 24 divisors (see below), whose sum is σ = 2283696072. Its totient is φ = 360321984.

The previous prime is 1111000997. The next prime is 1111001027. The reversal of 1111000998 is 8990001111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111000997) 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 11 ways as a sum of consecutive naturals, for example, 59415 + ... + 75842.

It is an arithmetic number, because the mean of its divisors is an integer number (95154003).

Almost surely, 2^1111000998 is an apocalyptic number.

1111000998 is an abundant number, since it is smaller than the sum of its proper divisors (1172695074).

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

1111000998 is a wasteful number, since it uses less digits than its factorization.

1111000998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135336 (or 135299 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 30.

The square root of 1111000998 is about 33331.6815957431. The cubic root of 1111000998 is about 1035.7099528172.

The spelling of 1111000998 in words is "one billion, one hundred eleven million, nine hundred ninety-eight", and thus it is an aban number.