13173438 has 16 divisors (see below), whose sum is σ = 26779536. Its totient is φ = 4319040.

The previous prime is 13173421. The next prime is 13173439. The reversal of 13173438 is 83437131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13173439) 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 in 7 ways as a sum of consecutive naturals, for example, 17631 + ... + 18362.

It is an arithmetic number, because the mean of its divisors is an integer number (1673721).

Almost surely, 2^13173438 is an apocalyptic number.

13173438 is an abundant number, since it is smaller than the sum of its proper divisors (13606098).

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

13173438 is a wasteful number, since it uses less digits than its factorization.

13173438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36059.

The product of its digits is 6048, while the sum is 30.

The square root of 13173438 is about 3629.5231091701. The cubic root of 13173438 is about 236.1745213936.

The spelling of 13173438 in words is "thirteen million, one hundred seventy-three thousand, four hundred thirty-eight".