478166438 has 16 divisors (see below), whose sum is σ = 733515264. Its totient is φ = 233675400.

The previous prime is 478166431. The next prime is 478166441. The reversal of 478166438 is 834661874.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 478166392 and 478166401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478166431) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 74663 + ... + 80813.

It is an arithmetic number, because the mean of its divisors is an integer number (45844704).

Almost surely, 2^478166438 is an apocalyptic number.

478166438 is a deficient number, since it is larger than the sum of its proper divisors (255348826).

478166438 is a wasteful number, since it uses less digits than its factorization.

478166438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7027.

The product of its digits is 774144, while the sum is 47.

The square root of 478166438 is about 21867.0171262566. The cubic root of 478166438 is about 781.9752904588.

The spelling of 478166438 in words is "four hundred seventy-eight million, one hundred sixty-six thousand, four hundred thirty-eight".