3644272 has 20 divisors (see below), whose sum is σ = 7097760. Its totient is φ = 1812608.

The previous prime is 3644237. The next prime is 3644279. The reversal of 3644272 is 2724463.

It is a self number, because there is not a number n which added to its sum of digits gives 3644272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644279) 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 3 ways as a sum of consecutive naturals, for example, 3348 + ... + 4300.

It is an arithmetic number, because the mean of its divisors is an integer number (354888).

Almost surely, 2^3644272 is an apocalyptic number.

It is an amenable number.

3644272 is a deficient number, since it is larger than the sum of its proper divisors (3453488).

3644272 is a wasteful number, since it uses less digits than its factorization.

3644272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200 (or 1194 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 3644272 is about 1908.9976427434. The cubic root of 3644272 is about 153.8875887369.

It can be divided in two parts, 3644 and 272, that added together give a triangular number (3916 = T₈₈).

The spelling of 3644272 in words is "three million, six hundred forty-four thousand, two hundred seventy-two".