2182682172 has 24 divisors (see below), whose sum is σ = 5555918592. Its totient is φ = 661418800.

The previous prime is 2182682149. The next prime is 2182682179. The reversal of 2182682172 is 2712862812.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2182682172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182682179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8267604 + ... + 8267867.

It is an arithmetic number, because the mean of its divisors is an integer number (231496608).

Almost surely, 2^2182682172 is an apocalyptic number.

2182682172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2182682172 is an abundant number, since it is smaller than the sum of its proper divisors (3373236420).

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

2182682172 is a wasteful number, since it uses less digits than its factorization.

2182682172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16535489 (or 16535487 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 2182682172 is about 46719.1841966445. The cubic root of 2182682172 is about 1297.1698137769.

The spelling of 2182682172 in words is "two billion, one hundred eighty-two million, six hundred eighty-two thousand, one hundred seventy-two".