39468209 has 4 divisors (see below), whose sum is σ = 43056240. Its totient is φ = 35880180.

The previous prime is 39468197. The next prime is 39468241. The reversal of 39468209 is 90286493.

It is a happy number.

39468209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39468209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39468259) 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 in 3 ways as a sum of consecutive naturals, for example, 1793999 + ... + 1794020.

It is an arithmetic number, because the mean of its divisors is an integer number (10764060).

Almost surely, 2^39468209 is an apocalyptic number.

It is an amenable number.

39468209 is a deficient number, since it is larger than the sum of its proper divisors (3588031).

39468209 is a wasteful number, since it uses less digits than its factorization.

39468209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588030.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 39468209 is about 6282.3728797326. The cubic root of 39468209 is about 340.4728398075.

The spelling of 39468209 in words is "thirty-nine million, four hundred sixty-eight thousand, two hundred nine".