420024233 has 2 divisors, whose sum is σ = 420024234. Its totient is φ = 420024232.

The previous prime is 420024217. The next prime is 420024247. The reversal of 420024233 is 332420024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259951129 + 160073104 = 16123^2 + 12652^2 .

It is a cyclic number.

It is not a de Polignac number, because 420024233 - 2⁴ = 420024217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420024263) by changing a digit.

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 as a sum of consecutive naturals, namely, 210012116 + 210012117.

It is an arithmetic number, because the mean of its divisors is an integer number (210012117).

Almost surely, 2^420024233 is an apocalyptic number.

It is an amenable number.

420024233 is a deficient number, since it is larger than the sum of its proper divisors (1).

420024233 is an equidigital number, since it uses as much as digits as its factorization.

420024233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 420024233 is about 20494.4927480531. The cubic root of 420024233 is about 748.9016414484.

Adding to 420024233 its reverse (332420024), we get a palindrome (752444257).

The spelling of 420024233 in words is "four hundred twenty million, twenty-four thousand, two hundred thirty-three".