13290434 has 4 divisors (see below), whose sum is σ = 19935654. Its totient is φ = 6645216.

The previous prime is 13290421. The next prime is 13290449. The reversal of 13290434 is 43409231.

13290434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11202409 + 2088025 = 3347^2 + 1445^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3322607 + ... + 3322610.

Almost surely, 2^13290434 is an apocalyptic number.

13290434 is a deficient number, since it is larger than the sum of its proper divisors (6645220).

13290434 is an equidigital number, since it uses as much as digits as its factorization.

13290434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645219.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13290434 is about 3645.6047509295. The cubic root of 13290434 is about 236.8716331442.

Adding to 13290434 its reverse (43409231), we get a palindrome (56699665).

The spelling of 13290434 in words is "thirteen million, two hundred ninety thousand, four hundred thirty-four".