13442872 has 8 divisors (see below), whose sum is σ = 25205400. Its totient is φ = 6721432.

The previous prime is 13442857. The next prime is 13442873. The reversal of 13442872 is 27824431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13442873) 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 as a sum of consecutive naturals, namely, 840172 + ... + 840187.

It is an arithmetic number, because the mean of its divisors is an integer number (3150675).

Almost surely, 2^13442872 is an apocalyptic number.

It is an amenable number.

13442872 is a deficient number, since it is larger than the sum of its proper divisors (11762528).

13442872 is a wasteful number, since it uses less digits than its factorization.

13442872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680365 (or 1680361 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 13442872 is about 3666.4522361542. The cubic root of 13442872 is about 237.7738123645.

The spelling of 13442872 in words is "thirteen million, four hundred forty-two thousand, eight hundred seventy-two".