304878 has 48 divisors (see below), whose sum is σ = 763344. Its totient is φ = 80640.

The previous prime is 304867. The next prime is 304879. The reversal of 304878 is 878403.

It is a Curzon number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304879) by changing a digit.

304878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 23 ways as a sum of consecutive naturals, for example, 4968 + ... + 5028.

It is an arithmetic number, because the mean of its divisors is an integer number (15903).

2³⁰⁴⁸⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381672).

304878 is an abundant number, since it is smaller than the sum of its proper divisors (458466).

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

304878 is a wasteful number, since it uses less digits than its factorization.

304878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 90 counting only the distinct ones).

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

The square root of 304878 is about 552.1575862016. The cubic root of 304878 is about 67.3041786884.

The spelling of 304878 in words is "three hundred four thousand, eight hundred seventy-eight".