42330643 has 4 divisors (see below), whose sum is σ = 42635320. Its totient is φ = 42025968.

The previous prime is 42330571. The next prime is 42330677. The reversal of 42330643 is 34603324.

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 42330643 - 2¹⁷ = 42199571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42330443) 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, 152130 + ... + 152407.

It is an arithmetic number, because the mean of its divisors is an integer number (10658830).

Almost surely, 2^42330643 is an apocalyptic number.

42330643 is a deficient number, since it is larger than the sum of its proper divisors (304677).

42330643 is a wasteful number, since it uses less digits than its factorization.

42330643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304676.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 42330643 is about 6506.2003504350. The cubic root of 42330643 is about 348.5124430606.

Adding to 42330643 its reverse (34603324), we get a palindrome (76933967).

The spelling of 42330643 in words is "forty-two million, three hundred thirty thousand, six hundred forty-three".