42244453 has 2 divisors, whose sum is σ = 42244454. Its totient is φ = 42244452.

The previous prime is 42244421. The next prime is 42244459. The reversal of 42244453 is 35444224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42224004 + 20449 = 6498^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 42244453 - 2⁵ = 42244421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42244459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21122226 + 21122227.

It is an arithmetic number, because the mean of its divisors is an integer number (21122227).

Almost surely, 2^42244453 is an apocalyptic number.

It is an amenable number.

42244453 is a deficient number, since it is larger than the sum of its proper divisors (1).

42244453 is an equidigital number, since it uses as much as digits as its factorization.

42244453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 28.

The square root of 42244453 is about 6499.5732936863. The cubic root of 42244453 is about 348.2757453593.

Adding to 42244453 its reverse (35444224), we get a palindrome (77688677).

The spelling of 42244453 in words is "forty-two million, two hundred forty-four thousand, four hundred fifty-three".