13320434 has 4 divisors (see below), whose sum is σ = 19980654. Its totient is φ = 6660216.

The previous prime is 13320431. The next prime is 13320443. The reversal of 13320434 is 43402331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43402331 = 7 ⋅6200333.

It can be written as a sum of positive squares in only one way, i.e., 7812025 + 5508409 = 2795^2 + 2347^2 .

It is a super-4 number, since 4×13320434⁴ (a number of 30 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (13320431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330107 + ... + 3330110.

Almost surely, 2^13320434 is an apocalyptic number.

13320434 is a deficient number, since it is larger than the sum of its proper divisors (6660220).

13320434 is an equidigital number, since it uses as much as digits as its factorization.

13320434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660219.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 13320434 is about 3649.7169753284. The cubic root of 13320434 is about 237.0497263721.

Adding to 13320434 its reverse (43402331), we get a palindrome (56722765).

The spelling of 13320434 in words is "thirteen million, three hundred twenty thousand, four hundred thirty-four".