3644522 has 12 divisors (see below), whose sum is σ = 6359490. Its totient is φ = 1561896.

The previous prime is 3644513. The next prime is 3644569. The reversal of 3644522 is 2254463.

It can be written as a sum of positive squares in only one way, i.e., 2436721 + 1207801 = 1561^2 + 1099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3644491 and 3644500.

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 5 ways as a sum of consecutive naturals, for example, 18497 + ... + 18692.

Almost surely, 2^3644522 is an apocalyptic number.

3644522 is a deficient number, since it is larger than the sum of its proper divisors (2714968).

3644522 is a wasteful number, since it uses less digits than its factorization.

3644522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37205 (or 37198 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 3644522 is about 1909.0631210099. The cubic root of 3644522 is about 153.8911075940.

Adding to 3644522 its reverse (2254463), we get a palindrome (5898985).

The spelling of 3644522 in words is "three million, six hundred forty-four thousand, five hundred twenty-two".