478793728 has 52 divisors (see below), whose sum is σ = 1094317600. Its totient is φ = 205185024.

The previous prime is 478793713. The next prime is 478793743. The reversal of 478793728 is 827397874.

It is an interprime number because it is at equal distance from previous prime (478793713) and next prime (478793743).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20323 + ... + 37021.

Almost surely, 2^478793728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478793728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547158800).

478793728 is an abundant number, since it is smaller than the sum of its proper divisors (615523872).

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

478793728 is an equidigital number, since it uses as much as digits as its factorization.

478793728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16730 (or 16708 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 55.

The square root of 478793728 is about 21881.3557166826. The cubic root of 478793728 is about 782.3170898102.

It can be divided in two parts, 4787937 and 28, that added together give a triangular number (4787965 = T₃₀₉₄).

The spelling of 478793728 in words is "four hundred seventy-eight million, seven hundred ninety-three thousand, seven hundred twenty-eight".