42223361 has 2 divisors, whose sum is σ = 42223362. Its totient is φ = 42223360.

The previous prime is 42223303. The next prime is 42223369. The reversal of 42223361 is 16332224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33408400 + 8814961 = 5780^2 + 2969^2 .

It is a cyclic number.

It is not a de Polignac number, because 42223361 - 2¹⁸ = 41961217 is a prime.

It is not a weakly prime, because it can be changed into another prime (42223369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21111680 + 21111681.

It is an arithmetic number, because the mean of its divisors is an integer number (21111681).

Almost surely, 2^42223361 is an apocalyptic number.

It is an amenable number.

42223361 is a deficient number, since it is larger than the sum of its proper divisors (1).

42223361 is an equidigital number, since it uses as much as digits as its factorization.

42223361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 42223361 is about 6497.9505230496. The cubic root of 42223361 is about 348.2177728178.

Adding to 42223361 its reverse (16332224), we get a palindrome (58555585).

The spelling of 42223361 in words is "forty-two million, two hundred twenty-three thousand, three hundred sixty-one".