13694820 has 96 divisors (see below), whose sum is σ = 41489280. Its totient is φ = 3363840.

The previous prime is 13694819. The next prime is 13694831. The reversal of 13694820 is 2849631.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 46594 + ... + 46886.

It is an arithmetic number, because the mean of its divisors is an integer number (432180).

Almost surely, 2^13694820 is an apocalyptic number.

13694820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13694820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20744640).

13694820 is an abundant number, since it is smaller than the sum of its proper divisors (27794460).

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

13694820 is a wasteful number, since it uses less digits than its factorization.

13694820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 13694820 is about 3700.6512940292. The cubic root of 13694820 is about 239.2500898073.

The spelling of 13694820 in words is "thirteen million, six hundred ninety-four thousand, eight hundred twenty".