3243240209 has 8 divisors (see below), whose sum is σ = 3553533120. Its totient is φ = 2935522800.

The previous prime is 3243240191. The next prime is 3243240223. The reversal of 3243240209 is 9020423423.

3243240209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3243240209 - 2¹⁶ = 3243174673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3243240269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641237 + ... + 646274.

It is an arithmetic number, because the mean of its divisors is an integer number (444191640).

Almost surely, 2^3243240209 is an apocalyptic number.

It is an amenable number.

3243240209 is a deficient number, since it is larger than the sum of its proper divisors (310292911).

3243240209 is a wasteful number, since it uses less digits than its factorization.

3243240209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287751.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 3243240209 is about 56949.4531053635. The cubic root of 3243240209 is about 1480.2203544863.

The spelling of 3243240209 in words is "three billion, two hundred forty-three million, two hundred forty thousand, two hundred nine".