409456799 has 2 divisors, whose sum is σ = 409456800. Its totient is φ = 409456798.

The previous prime is 409456759. The next prime is 409456841. The reversal of 409456799 is 997654904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 409456799 - 2²⁸ = 141021343 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409456799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409456759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204728399 + 204728400.

It is an arithmetic number, because the mean of its divisors is an integer number (204728400).

Almost surely, 2^409456799 is an apocalyptic number.

409456799 is a deficient number, since it is larger than the sum of its proper divisors (1).

409456799 is an equidigital number, since it uses as much as digits as its factorization.

409456799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 409456799 is about 20235.0388929698. The cubic root of 409456799 is about 742.5676563940.

The spelling of 409456799 in words is "four hundred nine million, four hundred fifty-six thousand, seven hundred ninety-nine".