12040365436 has 96 divisors (see below), whose sum is σ = 24861957120. Its totient is φ = 5043513600.

The previous prime is 12040365433. The next prime is 12040365443. The reversal of 12040365436 is 63456304021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040365433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7111006 + ... + 7112698.

It is an arithmetic number, because the mean of its divisors is an integer number (258978720).

Almost surely, 2^12040365436 is an apocalyptic number.

It is an amenable number.

12040365436 is an abundant number, since it is smaller than the sum of its proper divisors (12821591684).

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

12040365436 is a wasteful number, since it uses less digits than its factorization.

12040365436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1953 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 12040365436 its reverse (63456304021), we get a palindrome (75496669457).

The spelling of 12040365436 in words is "twelve billion, forty million, three hundred sixty-five thousand, four hundred thirty-six".