3640204 has 6 divisors (see below), whose sum is σ = 6370364. Its totient is φ = 1820100.

The previous prime is 3640181. The next prime is 3640207. The reversal of 3640204 is 4020463.

It is not an unprimeable number, because it can be changed into a prime (3640207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455022 + ... + 455029.

Almost surely, 2^3640204 is an apocalyptic number.

It is an amenable number.

3640204 is a deficient number, since it is larger than the sum of its proper divisors (2730160).

3640204 is a wasteful number, since it uses less digits than its factorization.

3640204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910055 (or 910053 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 3640204 is about 1907.9318646115. The cubic root of 3640204 is about 153.8303072653.

Adding to 3640204 its reverse (4020463), we get a palindrome (7660667).

It can be divided in two parts, 3640 and 204, that added together give a square (3844 = 62²).

The spelling of 3640204 in words is "three million, six hundred forty thousand, two hundred four".