4021223626 has 16 divisors (see below), whose sum is σ = 6899333184. Its totient is φ = 1721929824.

The previous prime is 4021223617. The next prime is 4021223627. The reversal of 4021223626 is 6263221204.

It is a junction number, because it is equal to n+sod(n) for n = 4021223594 and 4021223603.

It is not an unprimeable number, because it can be changed into a prime (4021223627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103680 + ... + 137083.

It is an arithmetic number, because the mean of its divisors is an integer number (431208324).

Almost surely, 2^4021223626 is an apocalyptic number.

4021223626 is a deficient number, since it is larger than the sum of its proper divisors (2878109558).

4021223626 is a wasteful number, since it uses less digits than its factorization.

4021223626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241965.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4021223626 is about 63413.1187216021. The cubic root of 4021223626 is about 1590.2036349028.

The spelling of 4021223626 in words is "four billion, twenty-one million, two hundred twenty-three thousand, six hundred twenty-six".