3640435223 has 8 divisors (see below), whose sum is σ = 3732341760. Its totient is φ = 3548677120.

The previous prime is 3640435219. The next prime is 3640435229. The reversal of 3640435223 is 3225340463.

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

It is a cyclic number.

It is not a de Polignac number, because 3640435223 - 2² = 3640435219 is a prime.

It is a super-2 number, since 2×3640435223² = 26505537225718119458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3640435223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640435229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13418 + ... + 86376.

It is an arithmetic number, because the mean of its divisors is an integer number (466542720).

Almost surely, 2^3640435223 is an apocalyptic number.

3640435223 is a deficient number, since it is larger than the sum of its proper divisors (91906537).

3640435223 is a wasteful number, since it uses less digits than its factorization.

3640435223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74217.

The product of its (nonzero) digits is 51840, while the sum is 32.

The square root of 3640435223 is about 60336.0192836750. The cubic root of 3640435223 is about 1538.3356425781.

Adding to 3640435223 its reverse (3225340463), we get a palindrome (6865775686).

The spelling of 3640435223 in words is "three billion, six hundred forty million, four hundred thirty-five thousand, two hundred twenty-three".