4224457 has 2 divisors, whose sum is σ = 4224458. Its totient is φ = 4224456.

The previous prime is 4224443. The next prime is 4224461. The reversal of 4224457 is 7544224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3767481 + 456976 = 1941^2 + 676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4224457 is a prime.

It is not a weakly prime, because it can be changed into another prime (4224427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112228 + 2112229.

It is an arithmetic number, because the mean of its divisors is an integer number (2112229).

Almost surely, 2^4224457 is an apocalyptic number.

It is an amenable number.

4224457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4224457 is an equidigital number, since it uses as much as digits as its factorization.

4224457 is an evil number, because the sum of its binary digits is even.

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

The square root of 4224457 is about 2055.3483889599. The cubic root of 4224457 is about 161.6554303075.

The spelling of 4224457 in words is "four million, two hundred twenty-four thousand, four hundred fifty-seven".