3640324 has 18 divisors (see below), whose sum is σ = 6726174. Its totient is φ = 1723680.

The previous prime is 3640309. The next prime is 3640327. The reversal of 3640324 is 4230463.

It can be written as a sum of positive squares in only one way, i.e., 1871424 + 1768900 = 1368^2 + 1330^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3640295 and 3640304.

It is not an unprimeable number, because it can be changed into a prime (3640327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184 + ... + 2704.

Almost surely, 2^3640324 is an apocalyptic number.

It is an amenable number.

3640324 is a deficient number, since it is larger than the sum of its proper divisors (3085850).

3640324 is a wasteful number, since it uses less digits than its factorization.

3640324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 3640324 is about 1907.9633120162. The cubic root of 3640324 is about 153.8319975949.

Adding to 3640324 its reverse (4230463), we get a palindrome (7870787).

The spelling of 3640324 in words is "three million, six hundred forty thousand, three hundred twenty-four".