208855340 has 12 divisors (see below), whose sum is σ = 438596256. Its totient is φ = 83542128.

The previous prime is 208855327. The next prime is 208855349. The reversal of 208855340 is 43558802.

It is a self number, because there is not a number n which added to its sum of digits gives 208855340.

It is not an unprimeable number, because it can be changed into a prime (208855349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5221364 + ... + 5221403.

It is an arithmetic number, because the mean of its divisors is an integer number (36549688).

Almost surely, 2^208855340 is an apocalyptic number.

208855340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208855340 is an abundant number, since it is smaller than the sum of its proper divisors (229740916).

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

208855340 is a wasteful number, since it uses less digits than its factorization.

208855340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10442776 (or 10442774 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 208855340 is about 14451.8282580440. The cubic root of 208855340 is about 593.3102636600.

The spelling of 208855340 in words is "two hundred eight million, eight hundred fifty-five thousand, three hundred forty".