2186459872 has 96 divisors (see below), whose sum is σ = 4598748000. Its totient is φ = 1021483008.

The previous prime is 2186459861. The next prime is 2186459911. The reversal of 2186459872 is 2789546812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6264754 + ... + 6265102.

It is an arithmetic number, because the mean of its divisors is an integer number (47903625).

Almost surely, 2^2186459872 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 2186459872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2299374000).

2186459872 is an abundant number, since it is smaller than the sum of its proper divisors (2412288128).

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

2186459872 is a wasteful number, since it uses less digits than its factorization.

2186459872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 580 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 2186459872 is about 46759.5965765318. The cubic root of 2186459872 is about 1297.9177458535.

The spelling of 2186459872 in words is "two billion, one hundred eighty-six million, four hundred fifty-nine thousand, eight hundred seventy-two".