42311449 has 2 divisors, whose sum is σ = 42311450. Its totient is φ = 42311448.

The previous prime is 42311443. The next prime is 42311471. The reversal of 42311449 is 94411324.

42311449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32855824 + 9455625 = 5732^2 + 3075^2 .

It is a cyclic number.

It is not a de Polignac number, because 42311449 - 2⁵ = 42311417 is a prime.

It is not a weakly prime, because it can be changed into another prime (42311443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155724 + 21155725.

It is an arithmetic number, because the mean of its divisors is an integer number (21155725).

Almost surely, 2^42311449 is an apocalyptic number.

It is an amenable number.

42311449 is a deficient number, since it is larger than the sum of its proper divisors (1).

42311449 is an equidigital number, since it uses as much as digits as its factorization.

42311449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 42311449 is about 6504.7251287045. The cubic root of 42311449 is about 348.4597597193.

The spelling of 42311449 in words is "forty-two million, three hundred eleven thousand, four hundred forty-nine".