42269999 has 2 divisors, whose sum is σ = 42270000. Its totient is φ = 42269998.

The previous prime is 42269971. The next prime is 42270001. The reversal of 42269999 is 99996224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42269999 - 2⁸ = 42269743 is a prime.

It is a Sophie Germain prime.

Together with 42270001, it forms a pair of twin primes.

It is a Chen prime.

42269999 is a modest number, since divided by 9999 gives 4226 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42269099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21134999 + 21135000.

It is an arithmetic number, because the mean of its divisors is an integer number (21135000).

Almost surely, 2^42269999 is an apocalyptic number.

42269999 is a deficient number, since it is larger than the sum of its proper divisors (1).

42269999 is an equidigital number, since it uses as much as digits as its factorization.

42269999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 50.

The square root of 42269999 is about 6501.5382026102. The cubic root of 42269999 is about 348.3459341356.

The spelling of 42269999 in words is "forty-two million, two hundred sixty-nine thousand, nine hundred ninety-nine".