478146 has 8 divisors (see below), whose sum is σ = 956304. Its totient is φ = 159380.

The previous prime is 478139. The next prime is 478157. The reversal of 478146 is 641874.

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

478146 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478146.

It is an unprimeable number.

478146 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39840 + ... + 39851.

It is an arithmetic number, because the mean of its divisors is an integer number (119538).

2⁴⁷⁸¹⁴⁶ is an apocalyptic number.

478146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478146 is a wasteful number, since it uses less digits than its factorization.

478146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79696.

The product of its digits is 5376, while the sum is 30.

The square root of 478146 is about 691.4810192623. The cubic root of 478146 is about 78.1964149123.

The spelling of 478146 in words is "four hundred seventy-eight thousand, one hundred forty-six".