409072855 has 8 divisors (see below), whose sum is σ = 498214512. Its totient is φ = 322373568.

The previous prime is 409072849. The next prime is 409072879. The reversal of 409072855 is 558270904.

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 409072855 - 2²¹ = 406975703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610222 + ... + 610891.

It is an arithmetic number, because the mean of its divisors is an integer number (62276814).

Almost surely, 2^409072855 is an apocalyptic number.

409072855 is a deficient number, since it is larger than the sum of its proper divisors (89141657).

409072855 is a wasteful number, since it uses less digits than its factorization.

409072855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221185.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 409072855 is about 20225.5495599007. The cubic root of 409072855 is about 742.3354841138.

The spelling of 409072855 in words is "four hundred nine million, seventy-two thousand, eight hundred fifty-five".