208334190 has 32 divisors (see below), whose sum is σ = 500388480. Its totient is φ = 55512864.

The previous prime is 208334171. The next prime is 208334197. The reversal of 208334190 is 91433802.

It is a super-2 number, since 2×208334190² = 86806269445912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208334197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63777 + ... + 66963.

It is an arithmetic number, because the mean of its divisors is an integer number (15637140).

Almost surely, 2^208334190 is an apocalyptic number.

208334190 is an abundant number, since it is smaller than the sum of its proper divisors (292054290).

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

208334190 is a wasteful number, since it uses less digits than its factorization.

208334190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 208334190 is about 14433.7864055140. The cubic root of 208334190 is about 592.8163632997.

Adding to 208334190 its reverse (91433802), we get a palindrome (299767992).

The spelling of 208334190 in words is "two hundred eight million, three hundred thirty-four thousand, one hundred ninety".