209412292 has 6 divisors (see below), whose sum is σ = 366471518. Its totient is φ = 104706144.

The previous prime is 209412251. The next prime is 209412293. The reversal of 209412292 is 292214902.

It can be written as a sum of positive squares in only one way, i.e., 140754496 + 68657796 = 11864^2 + 8286^2 .

It is not an unprimeable number, because it can be changed into a prime (209412293) by changing a digit.

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, 26176533 + ... + 26176540.

Almost surely, 2^209412292 is an apocalyptic number.

It is an amenable number.

209412292 is a deficient number, since it is larger than the sum of its proper divisors (157059226).

209412292 is a wasteful number, since it uses less digits than its factorization.

209412292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52353077 (or 52353075 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 209412292 is about 14471.0846863668. The cubic root of 209412292 is about 593.8371866502.

The spelling of 209412292 in words is "two hundred nine million, four hundred twelve thousand, two hundred ninety-two".