478305270 has 128 divisors (see below), whose sum is σ = 1312951680. Its totient is φ = 123863040.

The previous prime is 478305197. The next prime is 478305277. The reversal of 478305270 is 72503874.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478305277) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1860982 + ... + 1861238.

It is an arithmetic number, because the mean of its divisors is an integer number (10257435).

Almost surely, 2^478305270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478305270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656475840).

478305270 is an abundant number, since it is smaller than the sum of its proper divisors (834646410).

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

478305270 is a wasteful number, since it uses less digits than its factorization.

478305270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 478305270 is about 21870.1913571875. The cubic root of 478305270 is about 782.0509633346.

The spelling of 478305270 in words is "four hundred seventy-eight million, three hundred five thousand, two hundred seventy".