478823652 has 18 divisors (see below), whose sum is σ = 1210359878. Its totient is φ = 159607872.

The previous prime is 478823647. The next prime is 478823659. The reversal of 478823652 is 256328874.

It can be written as a sum of positive squares in only one way, i.e., 472801536 + 6022116 = 21744^2 + 2454^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 478823598 and 478823607.

It is not an unprimeable number, because it can be changed into a prime (478823659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6650293 + ... + 6650364.

Almost surely, 2^478823652 is an apocalyptic number.

It is an amenable number.

478823652 is an abundant number, since it is smaller than the sum of its proper divisors (731536226).

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

478823652 is a wasteful number, since it uses less digits than its factorization.

478823652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13300667 (or 13300662 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 478823652 is about 21882.0394844722. The cubic root of 478823652 is about 782.3333874123. Note that the first 4 decimals are identical.

The spelling of 478823652 in words is "four hundred seventy-eight million, eight hundred twenty-three thousand, six hundred fifty-two".