1805984349 has 8 divisors (see below), whose sum is σ = 2593208352. Its totient is φ = 1111374960.

The previous prime is 1805984347. The next prime is 1805984399. The reversal of 1805984349 is 9434895081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1805984349 - 2¹ = 1805984347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1805984347) 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, 23153607 + ... + 23153684.

It is an arithmetic number, because the mean of its divisors is an integer number (324151044).

Almost surely, 2^1805984349 is an apocalyptic number.

It is an amenable number.

1805984349 is a deficient number, since it is larger than the sum of its proper divisors (787224003).

1805984349 is a wasteful number, since it uses less digits than its factorization.

1805984349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46307307.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 1805984349 is about 42496.8745791970. The cubic root of 1805984349 is about 1217.7869827079.

The spelling of 1805984349 in words is "one billion, eight hundred five million, nine hundred eighty-four thousand, three hundred forty-nine".