478618885 has 16 divisors (see below), whose sum is σ = 586051200. Its totient is φ = 375111360.

The previous prime is 478618883. The next prime is 478618909. The reversal of 478618885 is 588816874.

It is a happy number.

It is not a de Polignac number, because 478618885 - 2¹ = 478618883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478618883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341416 + ... + 342814.

It is an arithmetic number, because the mean of its divisors is an integer number (36628200).

Almost surely, 2^478618885 is an apocalyptic number.

It is an amenable number.

478618885 is a deficient number, since it is larger than the sum of its proper divisors (107432315).

478618885 is a wasteful number, since it uses less digits than its factorization.

478618885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748.

The product of its digits is 3440640, while the sum is 55.

The square root of 478618885 is about 21877.3601012554. The cubic root of 478618885 is about 782.2218509407.

The spelling of 478618885 in words is "four hundred seventy-eight million, six hundred eighteen thousand, eight hundred eighty-five".