4457224 has 8 divisors (see below), whose sum is σ = 8357310. Its totient is φ = 2228608.

The previous prime is 4457221. The next prime is 4457249. The reversal of 4457224 is 4227544.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4334724 + 122500 = 2082^2 + 350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 4 + 4⁹ + 5³ + 7 + 2⁷ + 2⁹ + 4¹¹ .

It is a junction number, because it is equal to n+sod(n) for n = 4457192 and 4457201.

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 pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278569 + ... + 278584.

Almost surely, 2^4457224 is an apocalyptic number.

It is an amenable number.

4457224 is a deficient number, since it is larger than the sum of its proper divisors (3900086).

4457224 is a wasteful number, since it uses less digits than its factorization.

4457224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557159 (or 557155 counting only the distinct ones).

The product of its digits is 8960, while the sum is 28.

The square root of 4457224 is about 2111.2138688442. The cubic root of 4457224 is about 164.5715729602.

The spelling of 4457224 in words is "four million, four hundred fifty-seven thousand, two hundred twenty-four".