42744235 has 16 divisors (see below), whose sum is σ = 54540864. Its totient is φ = 32086912.

The previous prime is 42744227. The next prime is 42744271. The reversal of 42744235 is 53244724.

It is a happy number.

42744235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42744235 - 2³ = 42744227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42744197 and 42744206.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2589 + ... + 9601.

It is an arithmetic number, because the mean of its divisors is an integer number (3408804).

Almost surely, 2^42744235 is an apocalyptic number.

42744235 is a deficient number, since it is larger than the sum of its proper divisors (11796629).

42744235 is a wasteful number, since it uses less digits than its factorization.

42744235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094.

The product of its digits is 26880, while the sum is 31.

The square root of 42744235 is about 6537.9075398785. The cubic root of 42744235 is about 349.6438145134.

Adding to 42744235 its reverse (53244724), we get a palindrome (95988959).

The spelling of 42744235 in words is "forty-two million, seven hundred forty-four thousand, two hundred thirty-five".