208422 has 12 divisors (see below), whose sum is σ = 451620. Its totient is φ = 69468.

The previous prime is 208409. The next prime is 208433. The reversal of 208422 is 224802.

208422 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 (18), and also a Moran number because the ratio is a prime number: 11579 = 208422 / (2 + 0 + 8 + 4 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 208395 and 208404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5772 + ... + 5807.

It is an arithmetic number, because the mean of its divisors is an integer number (37635).

2²⁰⁸⁴²² is an apocalyptic number.

208422 is an abundant number, since it is smaller than the sum of its proper divisors (243198).

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

208422 is a wasteful number, since it uses less digits than its factorization.

208422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11587 (or 11584 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 208422 is about 456.5325837221. The cubic root of 208422 is about 59.2899639586.

It can be divided in two parts, 208 and 422, that added together give a triangular number (630 = T₃₅).

The spelling of 208422 in words is "two hundred eight thousand, four hundred twenty-two".