42320233 has 4 divisors (see below), whose sum is σ = 42416208. Its totient is φ = 42224260.

The previous prime is 42320203. The next prime is 42320237. The reversal of 42320233 is 33202324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42320233 - 2⁹ = 42319721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42320233.

It is not an unprimeable number, because it can be changed into a prime (42320237) 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, 47323 + ... + 48208.

It is an arithmetic number, because the mean of its divisors is an integer number (10604052).

Almost surely, 2^42320233 is an apocalyptic number.

It is an amenable number.

42320233 is a deficient number, since it is larger than the sum of its proper divisors (95975).

42320233 is an equidigital number, since it uses as much as digits as its factorization.

42320233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95974.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 42320233 is about 6505.4002951394. The cubic root of 42320233 is about 348.4838718592.

Adding to 42320233 its reverse (33202324), we get a palindrome (75522557).

The spelling of 42320233 in words is "forty-two million, three hundred twenty thousand, two hundred thirty-three".