478738382 has 4 divisors (see below), whose sum is σ = 718107576. Its totient is φ = 239369190.

The previous prime is 478738369. The next prime is 478738397. The reversal of 478738382 is 283837874.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 478738382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119684594 + ... + 119684597.

It is an arithmetic number, because the mean of its divisors is an integer number (179526894).

Almost surely, 2^478738382 is an apocalyptic number.

478738382 is a deficient number, since it is larger than the sum of its proper divisors (239369194).

478738382 is a wasteful number, since it uses less digits than its factorization.

478738382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239369193.

The product of its digits is 1806336, while the sum is 50.

The square root of 478738382 is about 21880.0909961545. The cubic root of 478738382 is about 782.2869447550.

The spelling of 478738382 in words is "four hundred seventy-eight million, seven hundred thirty-eight thousand, three hundred eighty-two".