2182897172 has 24 divisors (see below), whose sum is σ = 4074321384. Its totient is φ = 1019743232.

The previous prime is 2182897169. The next prime is 2182897183. The reversal of 2182897172 is 2717982812.

It can be written as a sum of positive squares in 4 ways, for example, as 912402436 + 1270494736 = 30206^2 + 35644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107843 + ... + 126474.

It is an arithmetic number, because the mean of its divisors is an integer number (169763391).

Almost surely, 2^2182897172 is an apocalyptic number.

It is an amenable number.

2182897172 is a deficient number, since it is larger than the sum of its proper divisors (1891424212).

2182897172 is a wasteful number, since it uses less digits than its factorization.

2182897172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234475 (or 234473 counting only the distinct ones).

The product of its digits is 225792, while the sum is 47.

The square root of 2182897172 is about 46721.4851219436. The cubic root of 2182897172 is about 1297.2124039376.

The spelling of 2182897172 in words is "two billion, one hundred eighty-two million, eight hundred ninety-seven thousand, one hundred seventy-two".