478982405 has 32 divisors (see below), whose sum is σ = 645857280. Its totient is φ = 338022720.

The previous prime is 478982363. The next prime is 478982407. The reversal of 478982405 is 504289874.

It is a happy number.

It is not a de Polignac number, because 478982405 - 2⁸ = 478982149 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 478982405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478982407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327566 + ... + 329024.

It is an arithmetic number, because the mean of its divisors is an integer number (20183040).

Almost surely, 2^478982405 is an apocalyptic number.

It is an amenable number.

478982405 is a deficient number, since it is larger than the sum of its proper divisors (166874875).

478982405 is a wasteful number, since it uses less digits than its factorization.

478982405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 478982405 is about 21885.6666565129. Note that the first 4 decimals coincide. The cubic root of 478982405 is about 782.4198382023.

The spelling of 478982405 in words is "four hundred seventy-eight million, nine hundred eighty-two thousand, four hundred five".