42330623 has 4 divisors (see below), whose sum is σ = 43129368. Its totient is φ = 41531880.

The previous prime is 42330571. The next prime is 42330677. The reversal of 42330623 is 32603324.

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

It is a cyclic number.

It is not a de Polignac number, because 42330623 - 2⁸ = 42330367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42330823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399293 + ... + 399398.

It is an arithmetic number, because the mean of its divisors is an integer number (10782342).

Almost surely, 2^42330623 is an apocalyptic number.

42330623 is a deficient number, since it is larger than the sum of its proper divisors (798745).

42330623 is an equidigital number, since it uses as much as digits as its factorization.

42330623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798744.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 42330623 is about 6506.1988134394. The cubic root of 42330623 is about 348.5123881733.

Adding to 42330623 its reverse (32603324), we get a palindrome (74933947).

The spelling of 42330623 in words is "forty-two million, three hundred thirty thousand, six hundred twenty-three".