13684374 has 72 divisors (see below), whose sum is σ = 33445776. Its totient is φ = 4039200.

The previous prime is 13684357. The next prime is 13684387. The reversal of 13684374 is 47348631.

13684374 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 132807 + ... + 132909.

Almost surely, 2^13684374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13684374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16722888).

13684374 is an abundant number, since it is smaller than the sum of its proper divisors (19761402).

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

13684374 is a wasteful number, since it uses less digits than its factorization.

13684374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 180 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 13684374 is about 3699.2396516041. The cubic root of 13684374 is about 239.1892433913.

The spelling of 13684374 in words is "thirteen million, six hundred eighty-four thousand, three hundred seventy-four".