12258304436 has 24 divisors (see below), whose sum is σ = 25038241536. Its totient is φ = 5141780640.

The previous prime is 12258304397. The next prime is 12258304477. The reversal of 12258304436 is 63440385221.

It is a self number, because there is not a number n which added to its sum of digits gives 12258304436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4656095 + ... + 4658726.

It is an arithmetic number, because the mean of its divisors is an integer number (1043260064).

Almost surely, 2^12258304436 is an apocalyptic number.

It is an amenable number.

12258304436 is an abundant number, since it is smaller than the sum of its proper divisors (12779937100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12258304436 is a wasteful number, since it uses less digits than its factorization.

12258304436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9314879 (or 9314877 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 12258304436 its reverse (63440385221), we get a palindrome (75698689657).

The spelling of 12258304436 in words is "twelve billion, two hundred fifty-eight million, three hundred four thousand, four hundred thirty-six".