3640304 has 10 divisors (see below), whose sum is σ = 7053120. Its totient is φ = 1820144.

The previous prime is 3640289. The next prime is 3640309. The reversal of 3640304 is 4030463.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640309) 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 as a sum of consecutive naturals, namely, 113744 + ... + 113775.

It is an arithmetic number, because the mean of its divisors is an integer number (705312).

Almost surely, 2^3640304 is an apocalyptic number.

It is an amenable number.

3640304 is a deficient number, since it is larger than the sum of its proper divisors (3412816).

3640304 is a wasteful number, since it uses less digits than its factorization.

3640304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227527 (or 227521 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3640304 is about 1907.9580708181. The cubic root of 3640304 is about 153.8317158759.

Adding to 3640304 its reverse (4030463), we get a palindrome (7670767).

The spelling of 3640304 in words is "three million, six hundred forty thousand, three hundred four".