298478 has 4 divisors (see below), whose sum is σ = 447720. Its totient is φ = 149238.

The previous prime is 298477. The next prime is 298483. The reversal of 298478 is 874892.

298478 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 14 and base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 298478.

It is not an unprimeable number, because it can be changed into a prime (298477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74618 + ... + 74621.

It is an arithmetic number, because the mean of its divisors is an integer number (111930).

2²⁹⁸⁴⁷⁸ is an apocalyptic number.

298478 is a deficient number, since it is larger than the sum of its proper divisors (149242).

298478 is a wasteful number, since it uses less digits than its factorization.

298478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149241.

The product of its digits is 32256, while the sum is 38.

The square root of 298478 is about 546.3314012575. The cubic root of 298478 is about 66.8298944685.

The spelling of 298478 in words is "two hundred ninety-eight thousand, four hundred seventy-eight".