13140440434 has 24 divisors (see below), whose sum is σ = 22008503088. Its totient is φ = 5832456840.

The previous prime is 13140440399. The next prime is 13140440441. The reversal of 13140440434 is 43404404131.

It is a happy 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 11 ways as a sum of consecutive naturals, for example, 3523879 + ... + 3527605.

It is an arithmetic number, because the mean of its divisors is an integer number (917020962).

Almost surely, 2^13140440434 is an apocalyptic number.

13140440434 is a deficient number, since it is larger than the sum of its proper divisors (8868062654).

13140440434 is an frugal number, since it uses more digits than its factorization.

13140440434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7510 (or 3783 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13140440434 its reverse (43404404131), we get a palindrome (56544844565).

The spelling of 13140440434 in words is "thirteen billion, one hundred forty million, four hundred forty thousand, four hundred thirty-four".