1042442447 has 2 divisors, whose sum is σ = 1042442448. Its totient is φ = 1042442446.

The previous prime is 1042442441. The next prime is 1042442449. The reversal of 1042442447 is 7442442401.

It is a strong prime.

It is an emirp because it is prime and its reverse (7442442401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042442447 - 2⁶ = 1042442383 is a prime.

Together with 1042442449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042442441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521221223 + 521221224.

It is an arithmetic number, because the mean of its divisors is an integer number (521221224).

Almost surely, 2^1042442447 is an apocalyptic number.

1042442447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042442447 is an equidigital number, since it uses as much as digits as its factorization.

1042442447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28672, while the sum is 32.

The square root of 1042442447 is about 32286.8773188117. The cubic root of 1042442447 is about 1013.9519209594.

Adding to 1042442447 its reverse (7442442401), we get a palindrome (8484884848).

The spelling of 1042442447 in words is "one billion, forty-two million, four hundred forty-two thousand, four hundred forty-seven".