4221922 has 16 divisors (see below), whose sum is σ = 6621120. Its totient is φ = 2017008.

The previous prime is 4221913. The next prime is 4221923. The reversal of 4221922 is 2291224.

It is a d-powerful number, because it can be written as 4³ + 2⁹ + 2¹² + 1 + 9⁴ + 2¹⁴ + 2²² .

It is a junction number, because it is equal to n+sod(n) for n = 4221893 and 4221902.

It is not an unprimeable number, because it can be changed into a prime (4221923) 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, 3883 + ... + 4849.

It is an arithmetic number, because the mean of its divisors is an integer number (413820).

Almost surely, 2^4221922 is an apocalyptic number.

4221922 is a deficient number, since it is larger than the sum of its proper divisors (2399198).

4221922 is a wasteful number, since it uses less digits than its factorization.

4221922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065.

The product of its digits is 576, while the sum is 22.

The square root of 4221922 is about 2054.7316126443. The cubic root of 4221922 is about 161.6230885956.

The spelling of 4221922 in words is "four million, two hundred twenty-one thousand, nine hundred twenty-two".