406506433 has 2 divisors, whose sum is σ = 406506434. Its totient is φ = 406506432.

The previous prime is 406506403. The next prime is 406506467. The reversal of 406506433 is 334605604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242487184 + 164019249 = 15572^2 + 12807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406506433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 406506395 and 406506404.

It is not a weakly prime, because it can be changed into another prime (406506403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203253216 + 203253217.

It is an arithmetic number, because the mean of its divisors is an integer number (203253217).

Almost surely, 2^406506433 is an apocalyptic number.

It is an amenable number.

406506433 is a deficient number, since it is larger than the sum of its proper divisors (1).

406506433 is an equidigital number, since it uses as much as digits as its factorization.

406506433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 406506433 is about 20162.0046870345. The cubic root of 406506433 is about 740.7798164800.

The spelling of 406506433 in words is "four hundred six million, five hundred six thousand, four hundred thirty-three".