42258427 has 2 divisors, whose sum is σ = 42258428. Its totient is φ = 42258426.

The previous prime is 42258401. The next prime is 42258431. The reversal of 42258427 is 72485224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42258427 - 2²³ = 33869819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42258392 and 42258401.

It is not a weakly prime, because it can be changed into another prime (42258457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21129213 + 21129214.

It is an arithmetic number, because the mean of its divisors is an integer number (21129214).

Almost surely, 2^42258427 is an apocalyptic number.

42258427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42258427 is an equidigital number, since it uses as much as digits as its factorization.

42258427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 34.

The square root of 42258427 is about 6500.6481984491. The cubic root of 42258427 is about 348.3141430533.

The spelling of 42258427 in words is "forty-two million, two hundred fifty-eight thousand, four hundred twenty-seven".