208222004 has 12 divisors (see below), whose sum is σ = 367997028. Its totient is φ = 103080000.

The previous prime is 208221989. The next prime is 208222031. The reversal of 208222004 is 400222802.

208222004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138532900 + 69689104 = 11770^2 + 8348^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257297 + ... + 258104.

It is an arithmetic number, because the mean of its divisors is an integer number (30666419).

Almost surely, 2^208222004 is an apocalyptic number.

It is an amenable number.

208222004 is a deficient number, since it is larger than the sum of its proper divisors (159775024).

208222004 is a wasteful number, since it uses less digits than its factorization.

208222004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515506 (or 515504 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 208222004 is about 14429.8996531507. The cubic root of 208222004 is about 592.7099355171.

Adding to 208222004 its reverse (400222802), we get a palindrome (608444806).

The spelling of 208222004 in words is "two hundred eight million, two hundred twenty-two thousand, four".