3640104436 has 12 divisors (see below), whose sum is σ = 6705455680. Its totient is φ = 1724259960.

The previous prime is 3640104401. The next prime is 3640104443. The reversal of 3640104436 is 6344010463.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3640104398 and 3640104407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23947980 + ... + 23948131.

Almost surely, 2^3640104436 is an apocalyptic number.

It is an amenable number.

3640104436 is a deficient number, since it is larger than the sum of its proper divisors (3065351244).

3640104436 is a wasteful number, since it uses less digits than its factorization.

3640104436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47896134 (or 47896132 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 3640104436 is about 60333.2780147076. The cubic root of 3640104436 is about 1538.2890477056.

Adding to 3640104436 its reverse (6344010463), we get a palindrome (9984114899).

The spelling of 3640104436 in words is "three billion, six hundred forty million, one hundred four thousand, four hundred thirty-six".