42302473 has 2 divisors, whose sum is σ = 42302474. Its totient is φ = 42302472.

The previous prime is 42302471. The next prime is 42302521. The reversal of 42302473 is 37420324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32398864 + 9903609 = 5692^2 + 3147^2 .

It is a cyclic number.

It is not a de Polignac number, because 42302473 - 2¹ = 42302471 is a prime.

Together with 42302471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42302471) 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, 21151236 + 21151237.

It is an arithmetic number, because the mean of its divisors is an integer number (21151237).

Almost surely, 2^42302473 is an apocalyptic number.

It is an amenable number.

42302473 is a deficient number, since it is larger than the sum of its proper divisors (1).

42302473 is an equidigital number, since it uses as much as digits as its factorization.

42302473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 42302473 is about 6504.0351321314. The cubic root of 42302473 is about 348.4351170904.

Adding to 42302473 its reverse (37420324), we get a palindrome (79722797).

The spelling of 42302473 in words is "forty-two million, three hundred two thousand, four hundred seventy-three".