406803269 has 2 divisors, whose sum is σ = 406803270. Its totient is φ = 406803268.

The previous prime is 406803259. The next prime is 406803317. The reversal of 406803269 is 962308604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406506244 + 297025 = 20162^2 + 545^2 .

It is a cyclic number.

It is not a de Polignac number, because 406803269 - 2²⁰ = 405754693 is a prime.

It is a super-2 number, since 2×406803269² = 330977799338172722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406803209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203401634 + 203401635.

It is an arithmetic number, because the mean of its divisors is an integer number (203401635).

Almost surely, 2^406803269 is an apocalyptic number.

It is an amenable number.

406803269 is a deficient number, since it is larger than the sum of its proper divisors (1).

406803269 is an equidigital number, since it uses as much as digits as its factorization.

406803269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 406803269 is about 20169.3646156739. The cubic root of 406803269 is about 740.9600814559.

The spelling of 406803269 in words is "four hundred six million, eight hundred three thousand, two hundred sixty-nine".