4021226 has 16 divisors (see below), whose sum is σ = 6721920. Its totient is φ = 1788480.

The previous prime is 4021211. The next prime is 4021229. The reversal of 4021226 is 6221204.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4021229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911 + ... + 2978.

It is an arithmetic number, because the mean of its divisors is an integer number (420120).

Almost surely, 2^4021226 is an apocalyptic number.

4021226 is a deficient number, since it is larger than the sum of its proper divisors (2700694).

4021226 is a wasteful number, since it uses less digits than its factorization.

4021226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4021226 is about 2005.2994788809. The cubic root of 4021226 is about 159.0203947838.

The spelling of 4021226 in words is "four million, twenty-one thousand, two hundred twenty-six".