3818172 has 12 divisors (see below), whose sum is σ = 8909096. Its totient is φ = 1272720.

The previous prime is 3818137. The next prime is 3818179. The reversal of 3818172 is 2718183.

It is a happy number.

3818172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3818179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159079 + ... + 159102.

Almost surely, 2^3818172 is an apocalyptic number.

It is an amenable number.

3818172 is an abundant number, since it is smaller than the sum of its proper divisors (5090924).

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

3818172 is a wasteful number, since it uses less digits than its factorization.

3818172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318188 (or 318186 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 3818172 is about 1954.0143295278. The cubic root of 3818172 is about 156.2974273094.

The spelling of 3818172 in words is "three million, eight hundred eighteen thousand, one hundred seventy-two".