1809071104 has 44 divisors (see below), whose sum is σ = 3621847168. Its totient is φ = 903168000.

The previous prime is 1809071063. The next prime is 1809071113. The reversal of 1809071104 is 4011709081.

It is a congruent number.

It is an unprimeable number.

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, 1229089 + ... + 1230559.

Almost surely, 2^1809071104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1809071104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810923584).

1809071104 is an abundant number, since it is smaller than the sum of its proper divisors (1812776064).

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

1809071104 is a wasteful number, since it uses less digits than its factorization.

1809071104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692 (or 2674 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 1809071104 is about 42533.1765096377. The cubic root of 1809071104 is about 1218.4803941211.

The spelling of 1809071104 in words is "one billion, eight hundred nine million, seventy-one thousand, one hundred four".