208942845 has 8 divisors (see below), whose sum is σ = 334308576. Its totient is φ = 111436176.

The previous prime is 208942823. The next prime is 208942861. The reversal of 208942845 is 548249802.

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

It is not a de Polignac number, because 208942845 - 2¹⁴ = 208926461 is a prime.

It is a super-2 number, since 2×208942845² = 87314224953388050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 208942797 and 208942806.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6964747 + ... + 6964776.

It is an arithmetic number, because the mean of its divisors is an integer number (41788572).

Almost surely, 2^208942845 is an apocalyptic number.

It is an amenable number.

208942845 is a deficient number, since it is larger than the sum of its proper divisors (125365731).

208942845 is a wasteful number, since it uses less digits than its factorization.

208942845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13929531.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 208942845 is about 14454.8554126287. The cubic root of 208942845 is about 593.3931126558.

The spelling of 208942845 in words is "two hundred eight million, nine hundred forty-two thousand, eight hundred forty-five".