1806484849 has 8 divisors (see below), whose sum is σ = 2012529960. Its totient is φ = 1610023296.

The previous prime is 1806484847. The next prime is 1806484853. The reversal of 1806484849 is 9484846081.

It can be written as a sum of positive squares in 4 ways, for example, as 576720225 + 1229764624 = 24015^2 + 35068^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1806484849 - 2¹ = 1806484847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1806484796 and 1806484805.

It is not an unprimeable number, because it can be changed into a prime (1806484847) 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 7 ways as a sum of consecutive naturals, for example, 2395492 + ... + 2396245.

It is an arithmetic number, because the mean of its divisors is an integer number (251566245).

Almost surely, 2^1806484849 is an apocalyptic number.

It is an amenable number.

1806484849 is a deficient number, since it is larger than the sum of its proper divisors (206045111).

1806484849 is a wasteful number, since it uses less digits than its factorization.

1806484849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791779.

The product of its (nonzero) digits is 1769472, while the sum is 52.

The square root of 1806484849 is about 42502.7628396084. The cubic root of 1806484849 is about 1217.8994691181.

The spelling of 1806484849 in words is "one billion, eight hundred six million, four hundred eighty-four thousand, eight hundred forty-nine".