4457222 has 32 divisors (see below), whose sum is σ = 8446464. Its totient is φ = 1713600.

The previous prime is 4457221. The next prime is 4457249. The reversal of 4457222 is 2227544.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 4⁹ + 4¹¹ + 5³ + 7 + 2 + 2⁷ + 2⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 4457191 and 4457200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4457221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15722 + ... + 16002.

It is an arithmetic number, because the mean of its divisors is an integer number (263952).

Almost surely, 2^4457222 is an apocalyptic number.

4457222 is a deficient number, since it is larger than the sum of its proper divisors (3989242).

4457222 is a wasteful number, since it uses less digits than its factorization.

4457222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404.

The product of its digits is 4480, while the sum is 26.

The square root of 4457222 is about 2111.2133951830. The cubic root of 4457222 is about 164.5715483452.

It can be divided in two parts, 445 and 7222, that added together give a palindrome (7667).

The spelling of 4457222 in words is "four million, four hundred fifty-seven thousand, two hundred twenty-two".