3644812 has 12 divisors (see below), whose sum is σ = 6391840. Its totient is φ = 1818576.

The previous prime is 3644801. The next prime is 3644831. The reversal of 3644812 is 2184463.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2989 + ... + 4027.

Almost surely, 2^3644812 is an apocalyptic number.

It is an amenable number.

3644812 is a deficient number, since it is larger than the sum of its proper divisors (2747028).

3644812 is a wasteful number, since it uses less digits than its factorization.

3644812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1918 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 3644812 is about 1909.1390729855. The cubic root of 3644812 is about 153.8951892667.

The spelling of 3644812 in words is "three million, six hundred forty-four thousand, eight hundred twelve".