3866444 has 12 divisors (see below), whose sum is σ = 6984768. Its totient is φ = 1870800.

The previous prime is 3866441. The next prime is 3866453. The reversal of 3866444 is 4446683.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3866441) 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, 15467 + ... + 15714.

It is an arithmetic number, because the mean of its divisors is an integer number (582064).

Almost surely, 2^3866444 is an apocalyptic number.

It is an amenable number.

3866444 is a deficient number, since it is larger than the sum of its proper divisors (3118324).

3866444 is a wasteful number, since it uses less digits than its factorization.

3866444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31216 (or 31214 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

The square root of 3866444 is about 1966.3275413827. The cubic root of 3866444 is about 156.9533446234.

The spelling of 3866444 in words is "three million, eight hundred sixty-six thousand, four hundred forty-four".