3646444 has 12 divisors (see below), whose sum is σ = 6396264. Its totient is φ = 1818944.

The previous prime is 3646441. The next prime is 3646463. The reversal of 3646444 is 4446463.

It is not an unprimeable number, because it can be changed into a prime (3646441) 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, 1572 + ... + 3124.

It is an arithmetic number, because the mean of its divisors is an integer number (533022).

Almost surely, 2^3646444 is an apocalyptic number.

It is an amenable number.

3646444 is a deficient number, since it is larger than the sum of its proper divisors (2749820).

3646444 is a wasteful number, since it uses less digits than its factorization.

3646444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144 (or 2142 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

The square root of 3646444 is about 1909.5664429393. The cubic root of 3646444 is about 153.9181551949.

The spelling of 3646444 in words is "three million, six hundred forty-six thousand, four hundred forty-four".