42320269 has 2 divisors, whose sum is σ = 42320270. Its totient is φ = 42320268.

The previous prime is 42320249. The next prime is 42320273. The reversal of 42320269 is 96202324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27405225 + 14915044 = 5235^2 + 3862^2 .

It is a cyclic number.

It is not a de Polignac number, because 42320269 - 2⁵ = 42320237 is a prime.

It is a super-2 number, since 2×42320269² = 3582010336464722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42320249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21160134 + 21160135.

It is an arithmetic number, because the mean of its divisors is an integer number (21160135).

Almost surely, 2^42320269 is an apocalyptic number.

It is an amenable number.

42320269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42320269 is an equidigital number, since it uses as much as digits as its factorization.

42320269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 42320269 is about 6505.4030620708. The cubic root of 42320269 is about 348.4839706726.

The spelling of 42320269 in words is "forty-two million, three hundred twenty thousand, two hundred sixty-nine".