450206423 has 2 divisors, whose sum is σ = 450206424. Its totient is φ = 450206422.

The previous prime is 450206381. The next prime is 450206429. The reversal of 450206423 is 324602054.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450206423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450206392 and 450206401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450206429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225103211 + 225103212.

It is an arithmetic number, because the mean of its divisors is an integer number (225103212).

Almost surely, 2^450206423 is an apocalyptic number.

450206423 is a deficient number, since it is larger than the sum of its proper divisors (1).

450206423 is an equidigital number, since it uses as much as digits as its factorization.

450206423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 450206423 is about 21218.0683145285. The cubic root of 450206423 is about 766.4265877349.

Adding to 450206423 its reverse (324602054), we get a palindrome (774808477).

The spelling of 450206423 in words is "four hundred fifty million, two hundred six thousand, four hundred twenty-three".