208339340 has 24 divisors (see below), whose sum is σ = 477286992. Its totient is φ = 75759680.

The previous prime is 208339333. The next prime is 208339349. The reversal of 208339340 is 43933802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 208339297 and 208339306.

It is not an unprimeable number, because it can be changed into a prime (208339349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473279 + ... + 473718.

It is an arithmetic number, because the mean of its divisors is an integer number (19886958).

Almost surely, 2^208339340 is an apocalyptic number.

208339340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208339340 is an abundant number, since it is smaller than the sum of its proper divisors (268947652).

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

208339340 is a wasteful number, since it uses less digits than its factorization.

208339340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947017 (or 947015 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 208339340 is about 14433.9648052779. The cubic root of 208339340 is about 592.8212480462.

The spelling of 208339340 in words is "two hundred eight million, three hundred thirty-nine thousand, three hundred forty".