4426021 has 2 divisors, whose sum is σ = 4426022. Its totient is φ = 4426020.

The previous prime is 4426007. The next prime is 4426049. The reversal of 4426021 is 1206244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2772225 + 1653796 = 1665^2 + 1286^2 .

It is a cyclic number.

It is not a de Polignac number, because 4426021 - 2⁵ = 4425989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4426021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4426091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2213010 + 2213011.

It is an arithmetic number, because the mean of its divisors is an integer number (2213011).

Almost surely, 2^4426021 is an apocalyptic number.

It is an amenable number.

4426021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4426021 is an equidigital number, since it uses as much as digits as its factorization.

4426021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4426021 is about 2103.8110656616. The cubic root of 4426021 is about 164.1866430494.

The spelling of 4426021 in words is "four million, four hundred twenty-six thousand, twenty-one".