208422056 has 8 divisors (see below), whose sum is σ = 390791370. Its totient is φ = 104211024.

The previous prime is 208422029. The next prime is 208422103. The reversal of 208422056 is 650224802.

It can be written as a sum of positive squares in only one way, i.e., 123965956 + 84456100 = 11134^2 + 9190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 13026371 + ... + 13026386.

Almost surely, 2^208422056 is an apocalyptic number.

It is an amenable number.

208422056 is a deficient number, since it is larger than the sum of its proper divisors (182369314).

208422056 is a wasteful number, since it uses less digits than its factorization.

208422056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26052763 (or 26052759 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 208422056 is about 14436.8298459184. The cubic root of 208422056 is about 592.8996926874.

Adding to 208422056 its reverse (650224802), we get a palindrome (858646858).

The spelling of 208422056 in words is "two hundred eight million, four hundred twenty-two thousand, fifty-six".