1109005898 has 48 divisors (see below), whose sum is σ = 2250487680. Its totient is φ = 398835360.

The previous prime is 1109005861. The next prime is 1109005903. The reversal of 1109005898 is 8985009011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3158 + ... + 47201.

It is an arithmetic number, because the mean of its divisors is an integer number (46885160).

Almost surely, 2^1109005898 is an apocalyptic number.

1109005898 is an abundant number, since it is smaller than the sum of its proper divisors (1141481782).

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

1109005898 is a wasteful number, since it uses less digits than its factorization.

1109005898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50403 (or 50392 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 1109005898 is about 33301.7401647421. The cubic root of 1109005898 is about 1035.0896164244.

The spelling of 1109005898 in words is "one billion, one hundred nine million, five thousand, eight hundred ninety-eight".