478166403 has 48 divisors (see below), whose sum is σ = 762943104. Its totient is φ = 264026880.

The previous prime is 478166383. The next prime is 478166417. The reversal of 478166403 is 304661874.

It is not a de Polignac number, because 478166403 - 2⁸ = 478166147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (478166453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462375 + ... + 463407.

It is an arithmetic number, because the mean of its divisors is an integer number (15894648).

Almost surely, 2^478166403 is an apocalyptic number.

478166403 is a deficient number, since it is larger than the sum of its proper divisors (284776701).

478166403 is a wasteful number, since it uses less digits than its factorization.

478166403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 478166403 is about 21867.0163259645. The cubic root of 478166403 is about 781.9752713796.

The spelling of 478166403 in words is "four hundred seventy-eight million, one hundred sixty-six thousand, four hundred three".