2182812372 has 36 divisors (see below), whose sum is σ = 5942101620. Its totient is φ = 671634432.

The previous prime is 2182812371. The next prime is 2182812383. The reversal of 2182812372 is 2732182812.

2182812372 is a `hidden beast` number, since 2 + 1 + 8 + 281 + 2 + 372 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 301508496 + 1881303876 = 17364^2 + 43374^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182812371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2331597 + ... + 2332532.

Almost surely, 2^2182812372 is an apocalyptic number.

It is an amenable number.

2182812372 is an abundant number, since it is smaller than the sum of its proper divisors (3759289248).

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

2182812372 is a wasteful number, since it uses less digits than its factorization.

2182812372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664152 (or 4664147 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 2182812372 is about 46720.5776077308. The cubic root of 2182812372 is about 1297.1956059198.

The spelling of 2182812372 in words is "two billion, one hundred eighty-two million, eight hundred twelve thousand, three hundred seventy-two".