2215183872 has 160 divisors (see below), whose sum is σ = 6589756800. Its totient is φ = 655441920.

The previous prime is 2215183819. The next prime is 2215183909. The reversal of 2215183872 is 2783815122.

It is a self number, because there is not a number n which added to its sum of digits gives 2215183872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725004 + ... + 728052.

It is an arithmetic number, because the mean of its divisors is an integer number (41185980).

Almost surely, 2^2215183872 is an apocalyptic number.

2215183872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215183872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3294878400).

2215183872 is an abundant number, since it is smaller than the sum of its proper divisors (4374572928).

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

2215183872 is a wasteful number, since it uses less digits than its factorization.

2215183872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3108 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 2215183872 is about 47065.7398964470. The cubic root of 2215183872 is about 1303.5767128269.

Adding to 2215183872 its reverse (2783815122), we get a palindrome (4998998994).

The spelling of 2215183872 in words is "two billion, two hundred fifteen million, one hundred eighty-three thousand, eight hundred seventy-two".