478878720 has 88 divisors (see below), whose sum is σ = 1531712784. Its totient is φ = 127696896.

The previous prime is 478878703. The next prime is 478878727. The reversal of 478878720 is 27878874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478878727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229 + ... + 30948.

Almost surely, 2^478878720 is an apocalyptic number.

478878720 is a gapful number since it is divisible by the number (40) 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 478878720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765856392).

478878720 is an abundant number, since it is smaller than the sum of its proper divisors (1052834064).

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

478878720 is a wasteful number, since it uses less digits than its factorization.

478878720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31205 (or 31187 counting only the distinct ones).

The product of its (nonzero) digits is 1404928, while the sum is 51.

The square root of 478878720 is about 21883.2977405143. The cubic root of 478878720 is about 782.3633774955.

The spelling of 478878720 in words is "four hundred seventy-eight million, eight hundred seventy-eight thousand, seven hundred twenty".