208118844 has 36 divisors (see below), whose sum is σ = 528058440. Its totient is φ = 69111840.

The previous prime is 208118843. The next prime is 208118849. The reversal of 208118844 is 448811802.

It is a happy number.

208118844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 208118799 and 208118808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208118843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1062 + ... + 20429.

It is an arithmetic number, because the mean of its divisors is an integer number (14668290).

Almost surely, 2^208118844 is an apocalyptic number.

It is an amenable number.

208118844 is an abundant number, since it is smaller than the sum of its proper divisors (319939596).

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

208118844 is a wasteful number, since it uses less digits than its factorization.

208118844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21770 (or 21765 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 208118844 is about 14426.3246878753. The cubic root of 208118844 is about 592.6120367102.

The spelling of 208118844 in words is "two hundred eight million, one hundred eighteen thousand, eight hundred forty-four".