1099873128 has 32 divisors (see below), whose sum is σ = 2767901760. Its totient is φ = 364195200.

The previous prime is 1099873081. The next prime is 1099873129. The reversal of 1099873128 is 8213789901.

It is not an unprimeable number, because it can be changed into a prime (1099873129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148125 + ... + 155372.

It is an arithmetic number, because the mean of its divisors is an integer number (86496930).

Almost surely, 2^1099873128 is an apocalyptic number.

It is an amenable number.

1099873128 is an abundant number, since it is smaller than the sum of its proper divisors (1668028632).

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

1099873128 is a wasteful number, since it uses less digits than its factorization.

1099873128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303657 (or 303653 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 1099873128 is about 33164.3351810345. The cubic root of 1099873128 is about 1032.2404268266.

The spelling of 1099873128 in words is "one billion, ninety-nine million, eight hundred seventy-three thousand, one hundred twenty-eight".