13005434 has 8 divisors (see below), whose sum is σ = 21008820. Its totient is φ = 6002496.

The previous prime is 13005431. The next prime is 13005439. The reversal of 13005434 is 43450031.

It can be written as a sum of positive squares in 2 ways, for example, as 12996025 + 9409 = 3605^2 + 97^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13005431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250079 + ... + 250130.

Almost surely, 2^13005434 is an apocalyptic number.

13005434 is a deficient number, since it is larger than the sum of its proper divisors (8003386).

13005434 is a wasteful number, since it uses less digits than its factorization.

13005434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500224.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13005434 is about 3606.3047569500. The cubic root of 13005434 is about 235.1662261383.

Adding to 13005434 its reverse (43450031), we get a palindrome (56455465).

The spelling of 13005434 in words is "thirteen million, five thousand, four hundred thirty-four".