208340945 has 8 divisors (see below), whose sum is σ = 250825344. Its totient is φ = 166128624.

The previous prime is 208340929. The next prime is 208340963. The reversal of 208340945 is 549043802.

208340945 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 not a de Polignac number, because 208340945 - 2⁴ = 208340929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66329 + ... + 69398.

It is an arithmetic number, because the mean of its divisors is an integer number (31353168).

Almost surely, 2^208340945 is an apocalyptic number.

It is an amenable number.

208340945 is a deficient number, since it is larger than the sum of its proper divisors (42484399).

208340945 is a wasteful number, since it uses less digits than its factorization.

208340945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136039.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 208340945 is about 14434.0204032002. The cubic root of 208340945 is about 592.8227703634.

The spelling of 208340945 in words is "two hundred eight million, three hundred forty thousand, nine hundred forty-five".