478146284 has 96 divisors (see below), whose sum is σ = 1126089216. Its totient is φ = 171924480.

The previous prime is 478146281. The next prime is 478146289. The reversal of 478146284 is 482641874.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (478146281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276647 + ... + 278369.

It is an arithmetic number, because the mean of its divisors is an integer number (11730096).

Almost surely, 2^478146284 is an apocalyptic number.

478146284 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478146284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563044608).

478146284 is an abundant number, since it is smaller than the sum of its proper divisors (647942932).

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

478146284 is a wasteful number, since it uses less digits than its factorization.

478146284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815 (or 1813 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 478146284 is about 21866.5562903718. The cubic root of 478146284 is about 781.9643039416.

The spelling of 478146284 in words is "four hundred seventy-eight million, one hundred forty-six thousand, two hundred eighty-four".