3085643560 has 24 divisors (see below), whose sum is σ = 6943488570. Its totient is φ = 1234116896.

The previous prime is 3085643557. The next prime is 3085643569. The reversal of 3085643560 is 653465803.

It can be written as a sum of positive squares in only one way, i.e., 2777079204 + 308564356 = 52698^2 + 17566^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (3085643569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 346929 + ... + 355711.

Almost surely, 2^3085643560 is an apocalyptic number.

It is an amenable number.

3085643560 is an abundant number, since it is smaller than the sum of its proper divisors (3857845010).

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

3085643560 is an frugal number, since it uses more digits than its factorization.

3085643560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17577 (or 8790 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 3085643560 is about 55548.5693785178. The cubic root of 3085643560 is about 1455.8453789132.

Multiplying 3085643560 by its sum of digits (40), we get a square (123425742400 = 351320²).

3085643560 divided by its sum of digits (40) gives a square (77141089 = 8783²).

The spelling of 3085643560 in words is "three billion, eighty-five million, six hundred forty-three thousand, five hundred sixty".