478208140 has 12 divisors (see below), whose sum is σ = 1004237136. Its totient is φ = 191283248.

The previous prime is 478208123. The next prime is 478208183. The reversal of 478208140 is 41802874.

It is a junction number, because it is equal to n+sod(n) for n = 478208096 and 478208105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11955184 + ... + 11955223.

It is an arithmetic number, because the mean of its divisors is an integer number (83686428).

Almost surely, 2^478208140 is an apocalyptic number.

It is an amenable number.

478208140 is an abundant number, since it is smaller than the sum of its proper divisors (526028996).

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

478208140 is a wasteful number, since it uses less digits than its factorization.

478208140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23910416 (or 23910414 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 478208140 is about 21867.9706420143. The cubic root of 478208140 is about 781.9980224220.

The spelling of 478208140 in words is "four hundred seventy-eight million, two hundred eight thousand, one hundred forty".