42243043 has 4 divisors (see below), whose sum is σ = 42293080. Its totient is φ = 42193008.

The previous prime is 42243041. The next prime is 42243077. The reversal of 42243043 is 34034224.

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 42243043 - 2¹ = 42243041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42243041) 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, 23730 + ... + 25447.

It is an arithmetic number, because the mean of its divisors is an integer number (10573270).

Almost surely, 2^42243043 is an apocalyptic number.

42243043 is a deficient number, since it is larger than the sum of its proper divisors (50037).

42243043 is an equidigital number, since it uses as much as digits as its factorization.

42243043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50036.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 42243043 is about 6499.4648241221. The cubic root of 42243043 is about 348.2718704974.

Adding to 42243043 its reverse (34034224), we get a palindrome (76277267).

The spelling of 42243043 in words is "forty-two million, two hundred forty-three thousand, forty-three".