382505478 has 16 divisors (see below), whose sum is σ = 765205056. Its totient is φ = 127469480.

The previous prime is 382505449. The next prime is 382505503. The reversal of 382505478 is 874505283.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36133 + ... + 45503.

It is an arithmetic number, because the mean of its divisors is an integer number (47825316).

Almost surely, 2^382505478 is an apocalyptic number.

382505478 is an abundant number, since it is smaller than the sum of its proper divisors (382699578).

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

382505478 is a wasteful number, since it uses less digits than its factorization.

382505478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16179.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 382505478 is about 19557.7472629135. The cubic root of 382505478 is about 725.9040504908.

The spelling of 382505478 in words is "three hundred eighty-two million, five hundred five thousand, four hundred seventy-eight".