1805486536 has 48 divisors (see below), whose sum is σ = 3945534300. Its totient is φ = 772297344.

The previous prime is 1805486399. The next prime is 1805486549. The reversal of 1805486536 is 6356845081.

It can be written as a sum of positive squares in 2 ways, for example, as 1805400100 + 86436 = 42490^2 + 294^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214210 + ... + 222478.

Almost surely, 2^1805486536 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 1805486536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972767150).

1805486536 is an abundant number, since it is smaller than the sum of its proper divisors (2140047764).

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

1805486536 is a wasteful number, since it uses less digits than its factorization.

1805486536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8846 (or 8835 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 1805486536 is about 42491.0171212693. The cubic root of 1805486536 is about 1217.6750795784.

The spelling of 1805486536 in words is "one billion, eight hundred five million, four hundred eighty-six thousand, five hundred thirty-six".