208223381 has 8 divisors (see below), whose sum is σ = 211305600. Its totient is φ = 205152480.

The previous prime is 208223377. The next prime is 208223387. The reversal of 208223381 is 183322802.

208223381 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 208223381 - 2² = 208223377 is a prime.

It is a super-2 number, since 2×208223381² = 86713952790142322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208223387) 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, 38630 + ... + 43688.

It is an arithmetic number, because the mean of its divisors is an integer number (26413200).

Almost surely, 2^208223381 is an apocalyptic number.

It is an amenable number.

208223381 is a deficient number, since it is larger than the sum of its proper divisors (3082219).

208223381 is an equidigital number, since it uses as much as digits as its factorization.

208223381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5659.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 208223381 is about 14429.9473665014. The cubic root of 208223381 is about 592.7112420710.

The spelling of 208223381 in words is "two hundred eight million, two hundred twenty-three thousand, three hundred eighty-one".