4205666 has 8 divisors (see below), whose sum is σ = 6340800. Its totient is φ = 2092068.

The previous prime is 4205659. The next prime is 4205671. The reversal of 4205666 is 6665024.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4886 + ... + 5681.

It is an arithmetic number, because the mean of its divisors is an integer number (792600).

Almost surely, 2^4205666 is an apocalyptic number.

4205666 is a deficient number, since it is larger than the sum of its proper divisors (2135134).

4205666 is a wasteful number, since it uses less digits than its factorization.

4205666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10768.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 4205666 is about 2050.7720497413. The cubic root of 4205666 is about 161.4153850702.

The spelling of 4205666 in words is "four million, two hundred five thousand, six hundred sixty-six".