478392422 has 4 divisors (see below), whose sum is σ = 717588636. Its totient is φ = 239196210.

The previous prime is 478392419. The next prime is 478392463. The reversal of 478392422 is 224293874.

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 478392422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119598104 + ... + 119598107.

It is an arithmetic number, because the mean of its divisors is an integer number (179397159).

Almost surely, 2^478392422 is an apocalyptic number.

478392422 is a deficient number, since it is larger than the sum of its proper divisors (239196214).

478392422 is a wasteful number, since it uses less digits than its factorization.

478392422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239196213.

The product of its digits is 193536, while the sum is 41.

The square root of 478392422 is about 21872.1837501426. The cubic root of 478392422 is about 782.0984596169.

The spelling of 478392422 in words is "four hundred seventy-eight million, three hundred ninety-two thousand, four hundred twenty-two".