42446273 has 2 divisors, whose sum is σ = 42446274. Its totient is φ = 42446272.

The previous prime is 42446233. The next prime is 42446279. The reversal of 42446273 is 37264424.

42446273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41692849 + 753424 = 6457^2 + 868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42446273 is a prime.

It is not a weakly prime, because it can be changed into another prime (42446279) 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, 21223136 + 21223137.

It is an arithmetic number, because the mean of its divisors is an integer number (21223137).

Almost surely, 2^42446273 is an apocalyptic number.

It is an amenable number.

42446273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42446273 is an equidigital number, since it uses as much as digits as its factorization.

42446273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 32.

The square root of 42446273 is about 6515.0804292810. The cubic root of 42446273 is about 348.8294857002.

The spelling of 42446273 in words is "forty-two million, four hundred forty-six thousand, two hundred seventy-three".