209082938 has 4 divisors (see below), whose sum is σ = 313624410. Its totient is φ = 104541468.

The previous prime is 209082889. The next prime is 209082989. The reversal of 209082938 is 839280902.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 204575809 + 4507129 = 14303^2 + 2123^2 .

It is a junction number, because it is equal to n+sod(n) for n = 209082895 and 209082904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52270733 + ... + 52270736.

Almost surely, 2^209082938 is an apocalyptic number.

209082938 is a deficient number, since it is larger than the sum of its proper divisors (104541472).

209082938 is a wasteful number, since it uses less digits than its factorization.

209082938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104541471.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 209082938 is about 14459.7004809920. The cubic root of 209082938 is about 593.5257033795.

The spelling of 209082938 in words is "two hundred nine million, eighty-two thousand, nine hundred thirty-eight".