2861640192 has 160 divisors (see below), whose sum is σ = 8352590400. Its totient is φ = 866582528.

The previous prime is 2861640191. The next prime is 2861640203. The reversal of 2861640192 is 2910461682.

It is a self number, because there is not a number n which added to its sum of digits gives 2861640192.

It is not an unprimeable number, because it can be changed into a prime (2861640191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755359 + ... + 759137.

It is an arithmetic number, because the mean of its divisors is an integer number (52203690).

Almost surely, 2^2861640192 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 2861640192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4176295200).

2861640192 is an abundant number, since it is smaller than the sum of its proper divisors (5490950208).

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

2861640192 is a wasteful number, since it uses less digits than its factorization.

2861640192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846 (or 3830 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2861640192 is about 53494.3005562275. The cubic root of 2861640192 is about 1419.7275467495.

The spelling of 2861640192 in words is "two billion, eight hundred sixty-one million, six hundred forty thousand, one hundred ninety-two".