13442685 has 16 divisors (see below), whose sum is σ = 22202880. Its totient is φ = 6937920.

The previous prime is 13442677. The next prime is 13442687. The reversal of 13442685 is 58624431.

It is not a de Polignac number, because 13442685 - 2³ = 13442677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13442687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13990 + ... + 14919.

It is an arithmetic number, because the mean of its divisors is an integer number (1387680).

Almost surely, 2^13442685 is an apocalyptic number.

13442685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13442685 is a deficient number, since it is larger than the sum of its proper divisors (8760195).

13442685 is a wasteful number, since it uses less digits than its factorization.

13442685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28948.

The product of its digits is 23040, while the sum is 33.

The square root of 13442685 is about 3666.4267345741. The cubic root of 13442685 is about 237.7727098246.

The spelling of 13442685 in words is "thirteen million, four hundred forty-two thousand, six hundred eighty-five".