42344273 has 2 divisors, whose sum is σ = 42344274. Its totient is φ = 42344272.

The previous prime is 42344261. The next prime is 42344327. The reversal of 42344273 is 37244324.

Together with next prime (42344327) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30558784 + 11785489 = 5528^2 + 3433^2 .

It is a cyclic number.

It is not a de Polignac number, because 42344273 - 2⁸ = 42344017 is a prime.

It is not a weakly prime, because it can be changed into another prime (42344473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21172136 + 21172137.

It is an arithmetic number, because the mean of its divisors is an integer number (21172137).

Almost surely, 2^42344273 is an apocalyptic number.

It is an amenable number.

42344273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42344273 is an equidigital number, since it uses as much as digits as its factorization.

42344273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 29.

The square root of 42344273 is about 6507.2477284947. The cubic root of 42344273 is about 348.5498447671.

Adding to 42344273 its reverse (37244324), we get a palindrome (79588597).

The spelling of 42344273 in words is "forty-two million, three hundred forty-four thousand, two hundred seventy-three".