209259068 has 6 divisors (see below), whose sum is σ = 366203376. Its totient is φ = 104629532.

The previous prime is 209259053. The next prime is 209259073. The reversal of 209259068 is 860952902.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26157380 + ... + 26157387.

It is an arithmetic number, because the mean of its divisors is an integer number (61033896).

Almost surely, 2^209259068 is an apocalyptic number.

It is an amenable number.

209259068 is a deficient number, since it is larger than the sum of its proper divisors (156944308).

209259068 is a wasteful number, since it uses less digits than its factorization.

209259068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52314771 (or 52314769 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 209259068 is about 14465.7895740260. The cubic root of 209259068 is about 593.6923172329.

The spelling of 209259068 in words is "two hundred nine million, two hundred fifty-nine thousand, sixty-eight".