42423365 has 16 divisors (see below), whose sum is σ = 52020480. Its totient is φ = 33203520.

The previous prime is 42423361. The next prime is 42423379. The reversal of 42423365 is 56332424.

It is not a de Polignac number, because 42423365 - 2² = 42423361 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423361) 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 15 ways as a sum of consecutive naturals, for example, 111746 + ... + 112124.

It is an arithmetic number, because the mean of its divisors is an integer number (3251280).

Almost surely, 2^42423365 is an apocalyptic number.

It is an amenable number.

42423365 is a deficient number, since it is larger than the sum of its proper divisors (9597115).

42423365 is a wasteful number, since it uses less digits than its factorization.

42423365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812.

The product of its digits is 17280, while the sum is 29.

The square root of 42423365 is about 6513.3221170152. The cubic root of 42423365 is about 348.7667206776.

Adding to 42423365 its reverse (56332424), we get a palindrome (98755789).

The spelling of 42423365 in words is "forty-two million, four hundred twenty-three thousand, three hundred sixty-five".