42234263 has 2 divisors, whose sum is σ = 42234264. Its totient is φ = 42234262.

The previous prime is 42234251. The next prime is 42234271. The reversal of 42234263 is 36243224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42234263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42234293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21117131 + 21117132.

It is an arithmetic number, because the mean of its divisors is an integer number (21117132).

Almost surely, 2^42234263 is an apocalyptic number.

42234263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42234263 is an equidigital number, since it uses as much as digits as its factorization.

42234263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 26.

The square root of 42234263 is about 6498.7893487941. The cubic root of 42234263 is about 348.2477399843.

Adding to 42234263 its reverse (36243224), we get a palindrome (78477487).

The spelling of 42234263 in words is "forty-two million, two hundred thirty-four thousand, two hundred sixty-three".