208392043290 has 32 divisors (see below), whose sum is σ = 500163465600. Its totient is φ = 55568704704.

The previous prime is 208392043273. The next prime is 208392043297. The reversal of 208392043290 is 92340293802.

It is not an unprimeable number, because it can be changed into a prime (208392043297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575536 + ... + 864884.

It is an arithmetic number, because the mean of its divisors is an integer number (15630108300).

Almost surely, 2^208392043290 is an apocalyptic number.

208392043290 is an abundant number, since it is smaller than the sum of its proper divisors (291771422310).

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

208392043290 is a wasteful number, since it uses less digits than its factorization.

208392043290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313366.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 208392043290 in words is "two hundred eight billion, three hundred ninety-two million, forty-three thousand, two hundred ninety".