3643144 has 8 divisors (see below), whose sum is σ = 6830910. Its totient is φ = 1821568.

The previous prime is 3643141. The next prime is 3643147. The reversal of 3643144 is 4413463.

It is a happy number.

3643144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3643141) and next prime (3643147).

It can be written as a sum of positive squares in only one way, i.e., 3062500 + 580644 = 1750^2 + 762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227689 + ... + 227704.

Almost surely, 2^3643144 is an apocalyptic number.

It is an amenable number.

3643144 is a deficient number, since it is larger than the sum of its proper divisors (3187766).

3643144 is a wasteful number, since it uses less digits than its factorization.

3643144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455399 (or 455395 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 3643144 is about 1908.7021768731. The cubic root of 3643144 is about 153.8717096521.

The spelling of 3643144 in words is "three million, six hundred forty-three thousand, one hundred forty-four".