478559409 has 8 divisors (see below), whose sum is σ = 638414400. Its totient is φ = 318872016.

The previous prime is 478559371. The next prime is 478559429. The reversal of 478559409 is 904955874.

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

It is not a de Polignac number, because 478559409 - 2⁸ = 478559153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478559429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35077 + ... + 46770.

It is an arithmetic number, because the mean of its divisors is an integer number (79801800).

Almost surely, 2^478559409 is an apocalyptic number.

It is an amenable number.

478559409 is a deficient number, since it is larger than the sum of its proper divisors (159854991).

478559409 is a wasteful number, since it uses less digits than its factorization.

478559409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83799.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 478559409 is about 21876.0007542512. Note that the first 3 decimals coincide. The cubic root of 478559409 is about 782.1894484346.

The spelling of 478559409 in words is "four hundred seventy-eight million, five hundred fifty-nine thousand, four hundred nine".