42918263 has 2 divisors, whose sum is σ = 42918264. Its totient is φ = 42918262.

The previous prime is 42918199. The next prime is 42918269. The reversal of 42918263 is 36281924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42918263 - 2⁶ = 42918199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42918269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21459131 + 21459132.

It is an arithmetic number, because the mean of its divisors is an integer number (21459132).

Almost surely, 2^42918263 is an apocalyptic number.

42918263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42918263 is an equidigital number, since it uses as much as digits as its factorization.

42918263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 42918263 is about 6551.2031719372. The cubic root of 42918263 is about 350.1176828752.

The spelling of 42918263 in words is "forty-two million, nine hundred eighteen thousand, two hundred sixty-three".