39640006 has 8 divisors (see below), whose sum is σ = 67954320. Its totient is φ = 16988568.

The previous prime is 39640001. The next prime is 39640043. The reversal of 39640006 is 60004693.

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

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39640001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415701 + ... + 1415728.

It is an arithmetic number, because the mean of its divisors is an integer number (8494290).

Almost surely, 2^39640006 is an apocalyptic number.

39640006 is a deficient number, since it is larger than the sum of its proper divisors (28314314).

39640006 is a wasteful number, since it uses less digits than its factorization.

39640006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831438.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 39640006 is about 6296.0309719696. The cubic root of 39640006 is about 340.9661275310.

Adding to 39640006 its reverse (60004693), we get a palindrome (99644699).

The spelling of 39640006 in words is "thirty-nine million, six hundred forty thousand, six".