42242023 has 2 divisors, whose sum is σ = 42242024. Its totient is φ = 42242022.

The previous prime is 42242021. The next prime is 42242029. The reversal of 42242023 is 32024224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42242023 - 2¹ = 42242021 is a prime.

Together with 42242021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42242021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121011 + 21121012.

It is an arithmetic number, because the mean of its divisors is an integer number (21121012).

Almost surely, 2^42242023 is an apocalyptic number.

42242023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42242023 is an equidigital number, since it uses as much as digits as its factorization.

42242023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42242023 is about 6499.3863556493. The cubic root of 42242023 is about 348.2690673520.

Adding to 42242023 its reverse (32024224), we get a palindrome (74266247).

The spelling of 42242023 in words is "forty-two million, two hundred forty-two thousand, twenty-three".