3644212 has 48 divisors (see below), whose sum is σ = 7846272. Its totient is φ = 1457280.

The previous prime is 3644183. The next prime is 3644213. The reversal of 3644212 is 2124463.

It is a happy number.

It is a super-2 number, since 2×3644212² = 26560562201888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13018 + ... + 13294.

It is an arithmetic number, because the mean of its divisors is an integer number (163464).

Almost surely, 2^3644212 is an apocalyptic number.

It is an amenable number.

3644212 is an abundant number, since it is smaller than the sum of its proper divisors (4202060).

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

3644212 is a wasteful number, since it uses less digits than its factorization.

3644212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 3644212 is about 1908.9819276253. The cubic root of 3644212 is about 153.8867441873.

Adding to 3644212 its reverse (2124463), we get a palindrome (5768675).

The spelling of 3644212 in words is "three million, six hundred forty-four thousand, two hundred twelve".