42273647 has 8 divisors (see below), whose sum is σ = 46756416. Its totient is φ = 37966752.

The previous prime is 42273631. The next prime is 42273659. The reversal of 42273647 is 74637224.

42273647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42273647 - 2⁴ = 42273631 is a prime.

It is a super-2 number, since 2×42273647² = 3574122461361218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42273607) 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 in 7 ways as a sum of consecutive naturals, for example, 43463 + ... + 44424.

It is an arithmetic number, because the mean of its divisors is an integer number (5844552).

Almost surely, 2^42273647 is an apocalyptic number.

42273647 is a deficient number, since it is larger than the sum of its proper divisors (4482769).

42273647 is a wasteful number, since it uses less digits than its factorization.

42273647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87937.

The product of its digits is 56448, while the sum is 35.

The square root of 42273647 is about 6501.8187455511. The cubic root of 42273647 is about 348.3559548709.

The spelling of 42273647 in words is "forty-two million, two hundred seventy-three thousand, six hundred forty-seven".