209714234 has 8 divisors (see below), whose sum is σ = 315691668. Its totient is φ = 104483680.

The previous prime is 209714209. The next prime is 209714237. The reversal of 209714234 is 432417902.

It can be written as a sum of positive squares in 2 ways, for example, as 206008609 + 3705625 = 14353^2 + 1925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 209714234.

It is not an unprimeable number, because it can be changed into a prime (209714237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186017 + ... + 187140.

Almost surely, 2^209714234 is an apocalyptic number.

209714234 is a deficient number, since it is larger than the sum of its proper divisors (105977434).

209714234 is a wasteful number, since it uses less digits than its factorization.

209714234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373440.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 209714234 is about 14481.5135258715. The cubic root of 209714234 is about 594.1224584747.

The spelling of 209714234 in words is "two hundred nine million, seven hundred fourteen thousand, two hundred thirty-four".