442405741 has 2 divisors, whose sum is σ = 442405742. Its totient is φ = 442405740.

The previous prime is 442405729. The next prime is 442405751. The reversal of 442405741 is 147504244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362750116 + 79655625 = 19046^2 + 8925^2 .

It is a cyclic number.

It is not a de Polignac number, because 442405741 - 2¹¹ = 442403693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442405751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221202870 + 221202871.

It is an arithmetic number, because the mean of its divisors is an integer number (221202871).

Almost surely, 2^442405741 is an apocalyptic number.

It is an amenable number.

442405741 is a deficient number, since it is larger than the sum of its proper divisors (1).

442405741 is an equidigital number, since it uses as much as digits as its factorization.

442405741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 442405741 is about 21033.4433937955. The cubic root of 442405741 is about 761.9741732026.

Adding to 442405741 its reverse (147504244), we get a palindrome (589909985).

The spelling of 442405741 in words is "four hundred forty-two million, four hundred five thousand, seven hundred forty-one".