1809104373 has 12 divisors (see below), whose sum is σ = 2614123980. Its totient is φ = 1205620416.

The previous prime is 1809104371. The next prime is 1809104393. The reversal of 1809104373 is 3734019081.

It is a happy number.

1809104373 is a `hidden beast` number, since 180 + 9 + 104 + 373 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1491658884 + 317445489 = 38622^2 + 17817^2 .

It is not a de Polignac number, because 1809104373 - 2¹ = 1809104371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1809104371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10936 + ... + 61137.

It is an arithmetic number, because the mean of its divisors is an integer number (217843665).

Almost surely, 2^1809104373 is an apocalyptic number.

It is an amenable number.

1809104373 is a deficient number, since it is larger than the sum of its proper divisors (805019607).

1809104373 is a wasteful number, since it uses less digits than its factorization.

1809104373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74868 (or 74865 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1809104373 is about 42533.5676025419. The cubic root of 1809104373 is about 1218.4878634011.

The spelling of 1809104373 in words is "one billion, eight hundred nine million, one hundred four thousand, three hundred seventy-three".