2852860644 has 36 divisors (see below), whose sum is σ = 7635599244. Its totient is φ = 895014912.

The previous prime is 2852860609. The next prime is 2852860657. The reversal of 2852860644 is 4460682582.

2852860644 is a `hidden beast` number, since 2 + 8 + 528 + 60 + 64 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2674958400 + 177902244 = 51720^2 + 13338^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2852860644.

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, 2330157 + ... + 2331380.

It is an arithmetic number, because the mean of its divisors is an integer number (212099979).

Almost surely, 2^2852860644 is an apocalyptic number.

It is an amenable number.

2852860644 is an abundant number, since it is smaller than the sum of its proper divisors (4782738600).

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

2852860644 is a wasteful number, since it uses less digits than its factorization.

2852860644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661564 (or 4661559 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The square root of 2852860644 is about 53412.1769262403. The cubic root of 2852860644 is about 1418.2741454101.

The spelling of 2852860644 in words is "two billion, eight hundred fifty-two million, eight hundred sixty thousand, six hundred forty-four".