42223369 has 2 divisors, whose sum is σ = 42223370. Its totient is φ = 42223368.

The previous prime is 42223361. The next prime is 42223373. The reversal of 42223369 is 96332224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30913600 + 11309769 = 5560^2 + 3363^2 .

It is a cyclic number.

It is not a de Polignac number, because 42223369 - 2³ = 42223361 is a prime.

It is a super-2 number, since 2×42223369² = 3565625779420322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42223369.

It is not a weakly prime, because it can be changed into another prime (42223361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21111684 + 21111685.

It is an arithmetic number, because the mean of its divisors is an integer number (21111685).

Almost surely, 2^42223369 is an apocalyptic number.

It is an amenable number.

42223369 is a deficient number, since it is larger than the sum of its proper divisors (1).

42223369 is an equidigital number, since it uses as much as digits as its factorization.

42223369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 42223369 is about 6497.9511386282. The cubic root of 42223369 is about 348.2177948099.

The spelling of 42223369 in words is "forty-two million, two hundred twenty-three thousand, three hundred sixty-nine".