478578620 has 48 divisors (see below), whose sum is σ = 1117256448. Its totient is φ = 171002880.

The previous prime is 478578599. The next prime is 478578629. The reversal of 478578620 is 26875874.

It is a super-2 number, since 2×478578620² = 458074991042208800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478578629) 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, 21629 + ... + 37748.

It is an arithmetic number, because the mean of its divisors is an integer number (23276176).

Almost surely, 2^478578620 is an apocalyptic number.

It is an amenable number.

478578620 is an abundant number, since it is smaller than the sum of its proper divisors (638677828).

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

478578620 is a wasteful number, since it uses less digits than its factorization.

478578620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59430 (or 59428 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 47.

The square root of 478578620 is about 21876.4398383284. The cubic root of 478578620 is about 782.1999148749.

The spelling of 478578620 in words is "four hundred seventy-eight million, five hundred seventy-eight thousand, six hundred twenty".