208434198 has 16 divisors (see below), whose sum is σ = 476421120. Its totient is φ = 59552616.

The previous prime is 208434179. The next prime is 208434241. The reversal of 208434198 is 891434802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2481318 + ... + 2481401.

It is an arithmetic number, because the mean of its divisors is an integer number (29776320).

Almost surely, 2^208434198 is an apocalyptic number.

208434198 is an abundant number, since it is smaller than the sum of its proper divisors (267986922).

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

208434198 is a wasteful number, since it uses less digits than its factorization.

208434198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962731.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 208434198 is about 14437.2503614781. The cubic root of 208434198 is about 592.9112059415.

The spelling of 208434198 in words is "two hundred eight million, four hundred thirty-four thousand, one hundred ninety-eight".