208390229 has 8 divisors (see below), whose sum is σ = 211968000. Its totient is φ = 204836112.

The previous prime is 208390219. The next prime is 208390243. The reversal of 208390229 is 922093802.

208390229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208390229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208390219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12332 + ... + 23850.

It is an arithmetic number, because the mean of its divisors is an integer number (26496000).

Almost surely, 2^208390229 is an apocalyptic number.

It is an amenable number.

208390229 is a deficient number, since it is larger than the sum of its proper divisors (3577771).

208390229 is a wasteful number, since it uses less digits than its factorization.

208390229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11827.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 208390229 is about 14435.7275189025. The cubic root of 208390229 is about 592.8695116540.

The spelling of 208390229 in words is "two hundred eight million, three hundred ninety thousand, two hundred twenty-nine".