478090 has 8 divisors (see below), whose sum is σ = 860580. Its totient is φ = 191232.

The previous prime is 478087. The next prime is 478099. The reversal of 478090 is 90874.

478090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 423801 + 54289 = 651^2 + 233^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (478099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23895 + ... + 23914.

2⁴⁷⁸⁰⁹⁰ is an apocalyptic number.

478090 is a deficient number, since it is larger than the sum of its proper divisors (382490).

478090 is a wasteful number, since it uses less digits than its factorization.

478090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47816.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 478090 is about 691.4405252804. The cubic root of 478090 is about 78.1933620301.

The spelling of 478090 in words is "four hundred seventy-eight thousand, ninety".