436422449 has 2 divisors, whose sum is σ = 436422450. Its totient is φ = 436422448.

The previous prime is 436422443. The next prime is 436422451. The reversal of 436422449 is 944224634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430272049 + 6150400 = 20743^2 + 2480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-436422449 is a prime.

It is a Sophie Germain prime.

Together with 436422451, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (436422443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218211224 + 218211225.

It is an arithmetic number, because the mean of its divisors is an integer number (218211225).

Almost surely, 2^436422449 is an apocalyptic number.

It is an amenable number.

436422449 is a deficient number, since it is larger than the sum of its proper divisors (1).

436422449 is an equidigital number, since it uses as much as digits as its factorization.

436422449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 38.

The square root of 436422449 is about 20890.7263875625. The cubic root of 436422449 is about 758.5234773473.

The spelling of 436422449 in words is "four hundred thirty-six million, four hundred twenty-two thousand, four hundred forty-nine".