478256562 has 192 divisors, whose sum is σ = 1327872000. Its totient is φ = 128595600.

The previous prime is 478256557. The next prime is 478256591. The reversal of 478256562 is 265652874.

478256562 is a `hidden beast` number, since 4 + 7 + 82 + 5 + 6 + 562 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3167187 + ... + 3167337.

It is an arithmetic number, because the mean of its divisors is an integer number (6916000).

Almost surely, 2^478256562 is an apocalyptic number.

478256562 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 478256562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663936000).

478256562 is an abundant number, since it is smaller than the sum of its proper divisors (849615438).

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

478256562 is a wasteful number, since it uses less digits than its factorization.

478256562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 182 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 478256562 is about 21869.0777583327. The cubic root of 478256562 is about 782.0244158318.

The spelling of 478256562 in words is "four hundred seventy-eight million, two hundred fifty-six thousand, five hundred sixty-two".