3644012 has 6 divisors (see below), whose sum is σ = 6377028. Its totient is φ = 1822004.

The previous prime is 3643973. The next prime is 3644021. The reversal of 3644012 is 2104463.

It is a happy number.

It is a super-2 number, since 2×3644012² = 26557646912288, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 455498 + ... + 455505.

It is an arithmetic number, because the mean of its divisors is an integer number (1062838).

Almost surely, 2^3644012 is an apocalyptic number.

It is an amenable number.

3644012 is a deficient number, since it is larger than the sum of its proper divisors (2733016).

3644012 is a wasteful number, since it uses less digits than its factorization.

3644012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911007 (or 911005 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3644012 is about 1908.9295429638. The cubic root of 3644012 is about 153.8839289548.

Adding to 3644012 its reverse (2104463), we get a palindrome (5748475).

The spelling of 3644012 in words is "three million, six hundred forty-four thousand, twelve".