42416273 has 4 divisors (see below), whose sum is σ = 42436788. Its totient is φ = 42395760.

The previous prime is 42416261. The next prime is 42416279. The reversal of 42416273 is 37261424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29506624 + 12909649 = 5432^2 + 3593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42416273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42416279) 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 in 3 ways as a sum of consecutive naturals, for example, 6758 + ... + 11423.

It is an arithmetic number, because the mean of its divisors is an integer number (10609197).

Almost surely, 2^42416273 is an apocalyptic number.

It is an amenable number.

42416273 is a deficient number, since it is larger than the sum of its proper divisors (20515).

42416273 is a wasteful number, since it uses less digits than its factorization.

42416273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20514.

The product of its digits is 8064, while the sum is 29.

The square root of 42416273 is about 6512.7776716237. Note that the first 3 decimals coincide. The cubic root of 42416273 is about 348.7472849144.

Adding to 42416273 its reverse (37261424), we get a palindrome (79677697).

The spelling of 42416273 in words is "forty-two million, four hundred sixteen thousand, two hundred seventy-three".