409264805 has 8 divisors (see below), whose sum is σ = 491692032. Its totient is φ = 327029008.

The previous prime is 409264721. The next prime is 409264811. The reversal of 409264805 is 508462904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 409264805 - 2⁸ = 409264549 is a prime.

It is a super-2 number, since 2×409264805² = 334995361223376050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43109 + ... + 51738.

It is an arithmetic number, because the mean of its divisors is an integer number (61461504).

Almost surely, 2^409264805 is an apocalyptic number.

It is an amenable number.

409264805 is a deficient number, since it is larger than the sum of its proper divisors (82427227).

409264805 is an equidigital number, since it uses as much as digits as its factorization.

409264805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95715.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 409264805 is about 20230.2942390861. The cubic root of 409264805 is about 742.4515751011.

The spelling of 409264805 in words is "four hundred nine million, two hundred sixty-four thousand, eight hundred five".