405504299 has 2 divisors, whose sum is σ = 405504300. Its totient is φ = 405504298.

The previous prime is 405504293. The next prime is 405504311. The reversal of 405504299 is 992405504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405504299 - 2¹² = 405500203 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (405504293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202752149 + 202752150.

It is an arithmetic number, because the mean of its divisors is an integer number (202752150).

Almost surely, 2^405504299 is an apocalyptic number.

405504299 is a deficient number, since it is larger than the sum of its proper divisors (1).

405504299 is an equidigital number, since it uses as much as digits as its factorization.

405504299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 405504299 is about 20137.1373089623. The cubic root of 405504299 is about 740.1705833917.

The spelling of 405504299 in words is "four hundred five million, five hundred four thousand, two hundred ninety-nine".