13853808 has 40 divisors (see below), whose sum is σ = 39766800. Its totient is φ = 4617792.

The previous prime is 13853789. The next prime is 13853821. The reversal of 13853808 is 80835831.

It is a happy number.

It is a super-2 number, since 2×13853808² = 383855992201728, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15603 + ... + 16466.

It is an arithmetic number, because the mean of its divisors is an integer number (994170).

Almost surely, 2^13853808 is an apocalyptic number.

13853808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13853808 is an abundant number, since it is smaller than the sum of its proper divisors (25912992).

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

13853808 is a wasteful number, since it uses less digits than its factorization.

13853808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32086 (or 32074 counting only the distinct ones).

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

The square root of 13853808 is about 3722.0703915966. The cubic root of 13853808 is about 240.1723761639.

The spelling of 13853808 in words is "thirteen million, eight hundred fifty-three thousand, eight hundred eight".