42236969 has 2 divisors, whose sum is σ = 42236970. Its totient is φ = 42236968.

The previous prime is 42236951. The next prime is 42237007. The reversal of 42236969 is 96963224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31214569 + 11022400 = 5587^2 + 3320^2 .

It is a cyclic number.

It is not a de Polignac number, because 42236969 - 2⁸ = 42236713 is a prime.

It is a super-2 number, since 2×42236969² = 3567923100613922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42236939) 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, 21118484 + 21118485.

It is an arithmetic number, because the mean of its divisors is an integer number (21118485).

Almost surely, 2^42236969 is an apocalyptic number.

It is an amenable number.

42236969 is a deficient number, since it is larger than the sum of its proper divisors (1).

42236969 is an equidigital number, since it uses as much as digits as its factorization.

42236969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 42236969 is about 6498.9975380823. The cubic root of 42236969 is about 348.2551773759.

The spelling of 42236969 in words is "forty-two million, two hundred thirty-six thousand, nine hundred sixty-nine".