4021606 has 8 divisors (see below), whose sum is σ = 6044040. Its totient is φ = 2006928.

The previous prime is 4021601. The next prime is 4021607. The reversal of 4021606 is 6061204.

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

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021601) 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, 396 + ... + 2863.

It is an arithmetic number, because the mean of its divisors is an integer number (755505).

Almost surely, 2^4021606 is an apocalyptic number.

4021606 is a deficient number, since it is larger than the sum of its proper divisors (2022434).

4021606 is a wasteful number, since it uses less digits than its factorization.

4021606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4021606 is about 2005.3942255826. The cubic root of 4021606 is about 159.0254036912.

The spelling of 4021606 in words is "four million, twenty-one thousand, six hundred six".