13684620 has 24 divisors (see below), whose sum is σ = 38317104. Its totient is φ = 3649216.

The previous prime is 13684613. The next prime is 13684651. The reversal of 13684620 is 2648631.

13684620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113979 + ... + 114098.

It is an arithmetic number, because the mean of its divisors is an integer number (1596546).

Almost surely, 2^13684620 is an apocalyptic number.

13684620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13684620 is an abundant number, since it is smaller than the sum of its proper divisors (24632484).

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

13684620 is a wasteful number, since it uses less digits than its factorization.

13684620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228089 (or 228087 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 13684620 is about 3699.2729015308. The cubic root of 13684620 is about 239.1906766611.

The spelling of 13684620 in words is "thirteen million, six hundred eighty-four thousand, six hundred twenty".