209441412 has 36 divisors (see below), whose sum is σ = 532497420. Its totient is φ = 69408192.

The previous prime is 209441399. The next prime is 209441417. The reversal of 209441412 is 214144902.

It is a happy number.

209441412 is a `hidden beast` number, since 209 + 4 + 41 + 412 = 666.

209441412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 119115396 + 90326016 = 10914^2 + 9504^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (209441417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10587 + ... + 23042.

It is an arithmetic number, because the mean of its divisors is an integer number (14791595).

Almost surely, 2^209441412 is an apocalyptic number.

It is an amenable number.

209441412 is an abundant number, since it is smaller than the sum of its proper divisors (323056008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209441412 is a wasteful number, since it uses less digits than its factorization.

209441412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33812 (or 33807 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 209441412 is about 14472.0907957351. The cubic root of 209441412 is about 593.8647108820.

The spelling of 209441412 in words is "two hundred nine million, four hundred forty-one thousand, four hundred twelve".