208422380089 has 49 divisors (see below), whose sum is σ = 267475049269. Its totient is φ = 162407049420.

The previous prime is 208422380087. The next prime is 208422380141. The reversal of 208422380089 is 980083224802.

It is a happy number.

The square root of 208422380089 is 456533.

The cubic root of 208422380089 is 5929.

It is a perfect power (a square, a cube, a 6-th power), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (49).

It is not a de Polignac number, because 208422380089 - 2¹ = 208422380087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208422380087) by changing a digit.

It is a polite number, since it can be written in 48 ways as a sum of consecutive naturals, for example, 18947489094 + ... + 18947489104.

Almost surely, 2^208422380089 is an apocalyptic number.

208422380089 is the 456533-rd square number.

208422380089 is the 228267-th centered octagonal number.

It is an amenable number.

208422380089 is a deficient number, since it is larger than the sum of its proper divisors (59052669180).

208422380089 is an frugal number, since it uses more digits than its factorization.

208422380089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 208422380089 in words is "two hundred eight billion, four hundred twenty-two million, three hundred eighty thousand, eighty-nine".