42333643 has 4 divisors (see below), whose sum is σ = 46182168. Its totient is φ = 38485120.

The previous prime is 42333623. The next prime is 42333713. The reversal of 42333643 is 34633324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42333643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42333623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1924246 + ... + 1924267.

It is an arithmetic number, because the mean of its divisors is an integer number (11545542).

Almost surely, 2^42333643 is an apocalyptic number.

42333643 is a deficient number, since it is larger than the sum of its proper divisors (3848525).

42333643 is a wasteful number, since it uses less digits than its factorization.

42333643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848524.

The product of its digits is 15552, while the sum is 28.

The square root of 42333643 is about 6506.4308956601. The cubic root of 42333643 is about 348.5206759667.

Adding to 42333643 its reverse (34633324), we get a palindrome (76966967).

The spelling of 42333643 in words is "forty-two million, three hundred thirty-three thousand, six hundred forty-three".