13402144434 has 16 divisors (see below), whose sum is σ = 30633473088. Its totient is φ = 3829184112.

The previous prime is 13402144417. The next prime is 13402144447. The reversal of 13402144434 is 43444120431.

It is a Curzon 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, 159549297 + ... + 159549380.

It is an arithmetic number, because the mean of its divisors is an integer number (1914592068).

Almost surely, 2^13402144434 is an apocalyptic number.

13402144434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13402144434 is an abundant number, since it is smaller than the sum of its proper divisors (17231328654).

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

13402144434 is a wasteful number, since it uses less digits than its factorization.

13402144434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319098689.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 13402144434 its reverse (43444120431), we get a palindrome (56846264865).

The spelling of 13402144434 in words is "thirteen billion, four hundred two million, one hundred forty-four thousand, four hundred thirty-four".