478727268 has 48 divisors (see below), whose sum is σ = 1195131840. Its totient is φ = 148694400.

The previous prime is 478727233. The next prime is 478727269. The reversal of 478727268 is 862727874.

It is a self number, because there is not a number n which added to its sum of digits gives 478727268.

It is not an unprimeable number, because it can be changed into a prime (478727269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3303 + ... + 31118.

It is an arithmetic number, because the mean of its divisors is an integer number (24898580).

Almost surely, 2^478727268 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 478727268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597565920).

478727268 is an abundant number, since it is smaller than the sum of its proper divisors (716404572).

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

478727268 is a wasteful number, since it uses less digits than its factorization.

478727268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34508 (or 34506 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 51.

The square root of 478727268 is about 21879.8370195027. The cubic root of 478727268 is about 782.2808910628.

The spelling of 478727268 in words is "four hundred seventy-eight million, seven hundred twenty-seven thousand, two hundred sixty-eight".