1809319413 has 12 divisors (see below), whose sum is σ = 2651675264. Its totient is φ = 1096557000.

The previous prime is 1809319411. The next prime is 1809319417. The reversal of 1809319413 is 3149139081.

It is a happy number.

It is not a de Polignac number, because 1809319413 - 2¹ = 1809319411 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1809319411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2491813 + ... + 2492538.

Almost surely, 2^1809319413 is an apocalyptic number.

It is an amenable number.

1809319413 is a deficient number, since it is larger than the sum of its proper divisors (842355851).

1809319413 is a wasteful number, since it uses less digits than its factorization.

1809319413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984376 (or 4984365 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 1809319413 is about 42536.0954131900. The cubic root of 1809319413 is about 1218.5361401899.

The spelling of 1809319413 in words is "one billion, eight hundred nine million, three hundred nineteen thousand, four hundred thirteen".