2104172 has 12 divisors (see below), whose sum is σ = 4208400. Its totient is φ = 901776.

The previous prime is 2104169. The next prime is 2104177. The reversal of 2104172 is 2714012.

2104172 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2104172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37547 + ... + 37602.

It is an arithmetic number, because the mean of its divisors is an integer number (350700).

2^2104172 is an apocalyptic number.

It is an amenable number.

2104172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2104172 is a wasteful number, since it uses less digits than its factorization.

2104172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75160 (or 75158 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2104172 is about 1450.5764371449. The cubic root of 2104172 is about 128.1426632004.

Adding to 2104172 its reverse (2714012), we get a palindrome (4818184).

The spelling of 2104172 in words is "two million, one hundred four thousand, one hundred seventy-two".