485684478 has 16 divisors (see below), whose sum is σ = 1079298960. Its totient is φ = 161894808.

The previous prime is 485684477. The next prime is 485684503. The reversal of 485684478 is 874486584.

485684478 is a `hidden beast` number, since 4 + 8 + 568 + 4 + 4 + 78 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 8994157 = 485684478 / (4 + 8 + 5 + 6 + 8 + 4 + 4 + 7 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485684477) 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, 4497025 + ... + 4497132.

It is an arithmetic number, because the mean of its divisors is an integer number (67456185).

Almost surely, 2^485684478 is an apocalyptic number.

485684478 is an abundant number, since it is smaller than the sum of its proper divisors (593614482).

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

485684478 is a wasteful number, since it uses less digits than its factorization.

485684478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8994168 (or 8994162 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The square root of 485684478 is about 22038.2503388994. The cubic root of 485684478 is about 786.0522370737.

The spelling of 485684478 in words is "four hundred eighty-five million, six hundred eighty-four thousand, four hundred seventy-eight".