13857804 has 72 divisors (see below), whose sum is σ = 37149840. Its totient is φ = 4515264.

The previous prime is 13857803. The next prime is 13857829. The reversal of 13857804 is 40875831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13857803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51382 + ... + 51650.

It is an arithmetic number, because the mean of its divisors is an integer number (515970).

Almost surely, 2^13857804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13857804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18574920).

13857804 is an abundant number, since it is smaller than the sum of its proper divisors (23292036).

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

13857804 is a wasteful number, since it uses less digits than its factorization.

13857804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 13857804 is about 3722.6071509092. The cubic root of 13857804 is about 240.1954657615.

The spelling of 13857804 in words is "thirteen million, eight hundred fifty-seven thousand, eight hundred four".