4221006 has 32 divisors (see below), whose sum is σ = 8951040. Its totient is φ = 1324224.

The previous prime is 4220987. The next prime is 4221011. The reversal of 4221006 is 6001224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9865 + ... + 10283.

It is an arithmetic number, because the mean of its divisors is an integer number (279720).

Almost surely, 2^4221006 is an apocalyptic number.

4221006 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4221006 is an abundant number, since it is smaller than the sum of its proper divisors (4730034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221006 is a wasteful number, since it uses less digits than its factorization.

4221006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 4221006 is about 2054.5087003953. The cubic root of 4221006 is about 161.6113990178.

The spelling of 4221006 in words is "four million, two hundred twenty-one thousand, six".