13253438 has 16 divisors (see below), whose sum is σ = 22963824. Its totient is φ = 5669760.

The previous prime is 13253423. The next prime is 13253441. The reversal of 13253438 is 83435231.

It is a self number, because there is not a number n which added to its sum of digits gives 13253438.

It is a congruent 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, 17345 + ... + 18092.

It is an arithmetic number, because the mean of its divisors is an integer number (1435239).

Almost surely, 2^13253438 is an apocalyptic number.

13253438 is a deficient number, since it is larger than the sum of its proper divisors (9710386).

13253438 is a wasteful number, since it uses less digits than its factorization.

13253438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35467.

The product of its digits is 8640, while the sum is 29.

The square root of 13253438 is about 3640.5271596295. The cubic root of 13253438 is about 236.6516391525.

Adding to 13253438 its reverse (83435231), we get a palindrome (96688669).

The spelling of 13253438 in words is "thirteen million, two hundred fifty-three thousand, four hundred thirty-eight".