2186472444 has 48 divisors (see below), whose sum is σ = 5514593280. Its totient is φ = 670265280.

The previous prime is 2186472389. The next prime is 2186472451. The reversal of 2186472444 is 4442746812.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2186472396 and 2186472405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16417 + ... + 68135.

It is an arithmetic number, because the mean of its divisors is an integer number (114887360).

Almost surely, 2^2186472444 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 2186472444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2757296640).

2186472444 is an abundant number, since it is smaller than the sum of its proper divisors (3328120836).

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

2186472444 is a wasteful number, since it uses less digits than its factorization.

2186472444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52010 (or 52008 counting only the distinct ones).

The product of its digits is 344064, while the sum is 42.

The square root of 2186472444 is about 46759.7310086361. The cubic root of 2186472444 is about 1297.9202334958.

The spelling of 2186472444 in words is "two billion, one hundred eighty-six million, four hundred seventy-two thousand, four hundred forty-four".