12440434334 has 8 divisors (see below), whose sum is σ = 18676455768. Its totient is φ = 6214949080.

The previous prime is 12440434309. The next prime is 12440434417. The reversal of 12440434334 is 43343404421.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12440434334.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2631092 + ... + 2635815.

It is an arithmetic number, because the mean of its divisors is an integer number (2334556971).

Almost surely, 2^12440434334 is an apocalyptic number.

12440434334 is a deficient number, since it is larger than the sum of its proper divisors (6236021434).

12440434334 is a wasteful number, since it uses less digits than its factorization.

12440434334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268090.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 12440434334 its reverse (43343404421), we get a palindrome (55783838755).

The spelling of 12440434334 in words is "twelve billion, four hundred forty million, four hundred thirty-four thousand, three hundred thirty-four".