42023743 has 2 divisors, whose sum is σ = 42023744. Its totient is φ = 42023742.

The previous prime is 42023741. The next prime is 42023759. The reversal of 42023743 is 34732024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42023743 - 2¹ = 42023741 is a prime.

Together with 42023741, 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 (42023741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21011871 + 21011872.

It is an arithmetic number, because the mean of its divisors is an integer number (21011872).

Almost surely, 2^42023743 is an apocalyptic number.

42023743 is a deficient number, since it is larger than the sum of its proper divisors (1).

42023743 is an equidigital number, since it uses as much as digits as its factorization.

42023743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 42023743 is about 6482.5722518149. The cubic root of 42023743 is about 347.6681531820.

Adding to 42023743 its reverse (34732024), we get a palindrome (76755767).

The spelling of 42023743 in words is "forty-two million, twenty-three thousand, seven hundred forty-three".