42818263 has 2 divisors, whose sum is σ = 42818264. Its totient is φ = 42818262.

The previous prime is 42818231. The next prime is 42818327. The reversal of 42818263 is 36281824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42818263 - 2⁵ = 42818231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42810263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21409131 + 21409132.

It is an arithmetic number, because the mean of its divisors is an integer number (21409132).

Almost surely, 2^42818263 is an apocalyptic number.

42818263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42818263 is an equidigital number, since it uses as much as digits as its factorization.

42818263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 34.

The square root of 42818263 is about 6543.5665351550. The cubic root of 42818263 is about 349.8455454549.

It can be divided in two parts, 4281 and 8263, that added together give a square (12544 = 112²).

The spelling of 42818263 in words is "forty-two million, eight hundred eighteen thousand, two hundred sixty-three".