208220922 has 64 divisors (see below), whose sum is σ = 569506560. Its totient is φ = 54914112.

The previous prime is 208220917. The next prime is 208220939. The reversal of 208220922 is 229022802.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16273 + ... + 26100.

It is an arithmetic number, because the mean of its divisors is an integer number (8898540).

Almost surely, 2^208220922 is an apocalyptic number.

208220922 is an abundant number, since it is smaller than the sum of its proper divisors (361285638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208220922 is a wasteful number, since it uses less digits than its factorization.

208220922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42404 (or 42398 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 208220922 is about 14429.8621615038. The cubic root of 208220922 is about 592.7089088673.

The spelling of 208220922 in words is "two hundred eight million, two hundred twenty thousand, nine hundred twenty-two".