3640202 has 8 divisors (see below), whose sum is σ = 5495556. Its totient is φ = 1808352.

The previous prime is 3640181. The next prime is 3640207. The reversal of 3640202 is 2020463.

It can be written as a sum of positive squares in 2 ways, for example, as 3530641 + 109561 = 1879^2 + 331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 5483 + ... + 6110.

Almost surely, 2^3640202 is an apocalyptic number.

3640202 is a deficient number, since it is larger than the sum of its proper divisors (1855354).

3640202 is a wasteful number, since it uses less digits than its factorization.

3640202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11752.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3640202 is about 1907.9313404837. The cubic root of 3640202 is about 153.8302790928.

Adding to 3640202 its reverse (2020463), we get a palindrome (5660665).

The spelling of 3640202 in words is "three million, six hundred forty thousand, two hundred two".