14685138 has 80 divisors (see below), whose sum is σ = 37403520. Its totient is φ = 4269024.

The previous prime is 14685133. The next prime is 14685149. The reversal of 14685138 is 83158641.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14685133) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39831 + ... + 40197.

It is an arithmetic number, because the mean of its divisors is an integer number (467544).

Almost surely, 2^14685138 is an apocalyptic number.

14685138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14685138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18701760).

14685138 is an abundant number, since it is smaller than the sum of its proper divisors (22718382).

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

14685138 is a wasteful number, since it uses less digits than its factorization.

14685138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 404 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 14685138 is about 3832.1192570169. The cubic root of 14685138 is about 244.8833986318.

The spelling of 14685138 in words is "fourteen million, six hundred eighty-five thousand, one hundred thirty-eight".