42437743 has 2 divisors, whose sum is σ = 42437744. Its totient is φ = 42437742.

The previous prime is 42437719. The next prime is 42437777. The reversal of 42437743 is 34773424.

It is an a-pointer prime, because the next prime (42437777) can be obtained adding 42437743 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42437743 - 2⁵ = 42437711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42437699 and 42437708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42437443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218871 + 21218872.

It is an arithmetic number, because the mean of its divisors is an integer number (21218872).

Almost surely, 2^42437743 is an apocalyptic number.

42437743 is a deficient number, since it is larger than the sum of its proper divisors (1).

42437743 is an equidigital number, since it uses as much as digits as its factorization.

42437743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 34.

The square root of 42437743 is about 6514.4257613392. The cubic root of 42437743 is about 348.8061172185.

The spelling of 42437743 in words is "forty-two million, four hundred thirty-seven thousand, seven hundred forty-three".