423442433 has 2 divisors, whose sum is σ = 423442434. Its totient is φ = 423442432.

The previous prime is 423442381. The next prime is 423442447. The reversal of 423442433 is 334244324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347002384 + 76440049 = 18628^2 + 8743^2 .

It is a cyclic number.

It is not a de Polignac number, because 423442433 - 2⁸ = 423442177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423442396 and 423442405.

It is not a weakly prime, because it can be changed into another prime (423442463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211721216 + 211721217.

It is an arithmetic number, because the mean of its divisors is an integer number (211721217).

Almost surely, 2^423442433 is an apocalyptic number.

It is an amenable number.

423442433 is a deficient number, since it is larger than the sum of its proper divisors (1).

423442433 is an equidigital number, since it uses as much as digits as its factorization.

423442433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 29.

The square root of 423442433 is about 20577.7169044576. The cubic root of 423442433 is about 750.9277012060.

Adding to 423442433 its reverse (334244324), we get a palindrome (757686757).

The spelling of 423442433 in words is "four hundred twenty-three million, four hundred forty-two thousand, four hundred thirty-three".