12240440434 has 4 divisors (see below), whose sum is σ = 18360660654. Its totient is φ = 6120220216.

The previous prime is 12240440417. The next prime is 12240440477. The reversal of 12240440434 is 43404404221.

12240440434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7734674809 + 4505765625 = 87947^2 + 67125^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3060110107 + ... + 3060110110.

Almost surely, 2^12240440434 is an apocalyptic number.

12240440434 is a deficient number, since it is larger than the sum of its proper divisors (6120220220).

12240440434 is an equidigital number, since it uses as much as digits as its factorization.

12240440434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120220219.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 12240440434 its reverse (43404404221), we get a palindrome (55644844655).

The spelling of 12240440434 in words is "twelve billion, two hundred forty million, four hundred forty thousand, four hundred thirty-four".