3940006 has 8 divisors (see below), whose sum is σ = 6754320. Its totient is φ = 1688568.

The previous prime is 3939997. The next prime is 3940009. The reversal of 3940006 is 6000493.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940009) 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, 140701 + ... + 140728.

It is an arithmetic number, because the mean of its divisors is an integer number (844290).

Almost surely, 2^3940006 is an apocalyptic number.

3940006 is a deficient number, since it is larger than the sum of its proper divisors (2814314).

3940006 is a wasteful number, since it uses less digits than its factorization.

3940006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281438.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3940006 is about 1984.9448355055. The cubic root of 3940006 is about 157.9424829367.

Adding to 3940006 its reverse (6000493), we get a palindrome (9940499).

The spelling of 3940006 in words is "three million, nine hundred forty thousand, six".