406504429 has 2 divisors, whose sum is σ = 406504430. Its totient is φ = 406504428.

The previous prime is 406504421. The next prime is 406504433. The reversal of 406504429 is 924405604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205148329 + 201356100 = 14323^2 + 14190^2 .

It is a cyclic number.

It is not a de Polignac number, because 406504429 - 2³ = 406504421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 406504394 and 406504403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406504421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203252214 + 203252215.

It is an arithmetic number, because the mean of its divisors is an integer number (203252215).

Almost surely, 2^406504429 is an apocalyptic number.

It is an amenable number.

406504429 is a deficient number, since it is larger than the sum of its proper divisors (1).

406504429 is an equidigital number, since it uses as much as digits as its factorization.

406504429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 406504429 is about 20161.9549895341. The cubic root of 406504429 is about 740.7785991764.

The spelling of 406504429 in words is "four hundred six million, five hundred four thousand, four hundred twenty-nine".