209126968 has 16 divisors (see below), whose sum is σ = 392789880. Its totient is φ = 104383008.

The previous prime is 209126941. The next prime is 209126987. The reversal of 209126968 is 869621902.

It is a super-3 number, since 3×209126968³ (a number of 26 digits) contains 333 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 17571 + ... + 26962.

Almost surely, 2^209126968 is an apocalyptic number.

It is an amenable number.

209126968 is a deficient number, since it is larger than the sum of its proper divisors (183662912).

209126968 is a wasteful number, since it uses less digits than its factorization.

209126968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45126 (or 45122 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 209126968 is about 14461.2229081776. Note that the first 3 decimals coincide. The cubic root of 209126968 is about 593.5673632471.

The spelling of 209126968 in words is "two hundred nine million, one hundred twenty-six thousand, nine hundred sixty-eight".