423236245 has 4 divisors (see below), whose sum is σ = 507883500. Its totient is φ = 338588992.

The previous prime is 423236221. The next prime is 423236287. The reversal of 423236245 is 542632324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 318194244 + 105042001 = 17838^2 + 10249^2 .

It is a cyclic number.

It is not a de Polignac number, because 423236245 - 2¹¹ = 423234197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42323620 + ... + 42323629.

It is an arithmetic number, because the mean of its divisors is an integer number (126970875).

Almost surely, 2^423236245 is an apocalyptic number.

It is an amenable number.

423236245 is a deficient number, since it is larger than the sum of its proper divisors (84647255).

423236245 is an equidigital number, since it uses as much as digits as its factorization.

423236245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84647254.

The product of its digits is 34560, while the sum is 31.

The square root of 423236245 is about 20572.7063120047. The cubic root of 423236245 is about 750.8057976472.

Adding to 423236245 its reverse (542632324), we get a palindrome (965868569).

The spelling of 423236245 in words is "four hundred twenty-three million, two hundred thirty-six thousand, two hundred forty-five".