478166020 has 24 divisors (see below), whose sum is σ = 1027502784. Its totient is φ = 186818016.

The previous prime is 478166011. The next prime is 478166023. The reversal of 478166020 is 20661874.

It is not an unprimeable number, because it can be changed into a prime (478166023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277144 + ... + 278863.

It is an arithmetic number, because the mean of its divisors is an integer number (42812616).

Almost surely, 2^478166020 is an apocalyptic number.

It is an amenable number.

478166020 is an abundant number, since it is smaller than the sum of its proper divisors (549336764).

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

478166020 is a wasteful number, since it uses less digits than its factorization.

478166020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556059 (or 556057 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 478166020 is about 21867.0075684809. The cubic root of 478166020 is about 781.9750625983.

The spelling of 478166020 in words is "four hundred seventy-eight million, one hundred sixty-six thousand, twenty".