405423233 has 2 divisors, whose sum is σ = 405423234. Its totient is φ = 405423232.

The previous prime is 405423229. The next prime is 405423247. The reversal of 405423233 is 332324504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402283249 + 3139984 = 20057^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 405423233 - 2² = 405423229 is a prime.

It is not a weakly prime, because it can be changed into another prime (405413233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202711616 + 202711617.

It is an arithmetic number, because the mean of its divisors is an integer number (202711617).

Almost surely, 2^405423233 is an apocalyptic number.

It is an amenable number.

405423233 is a deficient number, since it is larger than the sum of its proper divisors (1).

405423233 is an equidigital number, since it uses as much as digits as its factorization.

405423233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 405423233 is about 20135.1243601821. The cubic root of 405423233 is about 740.1212566090.

Adding to 405423233 its reverse (332324504), we get a palindrome (737747737).

The spelling of 405423233 in words is "four hundred five million, four hundred twenty-three thousand, two hundred thirty-three".