423204401 has 2 divisors, whose sum is σ = 423204402. Its totient is φ = 423204400.

The previous prime is 423204373. The next prime is 423204407. The reversal of 423204401 is 104402324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247244176 + 175960225 = 15724^2 + 13265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423204401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (423204407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211602200 + 211602201.

It is an arithmetic number, because the mean of its divisors is an integer number (211602201).

Almost surely, 2^423204401 is an apocalyptic number.

It is an amenable number.

423204401 is a deficient number, since it is larger than the sum of its proper divisors (1).

423204401 is an equidigital number, since it uses as much as digits as its factorization.

423204401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 423204401 is about 20571.9323594066. The cubic root of 423204401 is about 750.7869671400.

Adding to 423204401 its reverse (104402324), we get a palindrome (527606725).

The spelling of 423204401 in words is "four hundred twenty-three million, two hundred four thousand, four hundred one".