208940239 has 8 divisors (see below), whose sum is σ = 213746688. Its totient is φ = 204148920.

The previous prime is 208940233. The next prime is 208940261. The reversal of 208940239 is 932049802.

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

It is a cyclic number.

It is not a de Polignac number, because 208940239 - 2⁷ = 208940111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208940198 and 208940207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208940233) 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, 26974 + ... + 33844.

It is an arithmetic number, because the mean of its divisors is an integer number (26718336).

Almost surely, 2^208940239 is an apocalyptic number.

208940239 is a deficient number, since it is larger than the sum of its proper divisors (4806449).

208940239 is an equidigital number, since it uses as much as digits as its factorization.

208940239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7565.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 208940239 is about 14454.7652696265. The cubic root of 208940239 is about 593.3906456512.

The spelling of 208940239 in words is "two hundred eight million, nine hundred forty thousand, two hundred thirty-nine".