478258578 has 24 divisors (see below), whose sum is σ = 1184259648. Its totient is φ = 136645272.

The previous prime is 478258577. The next prime is 478258609. The reversal of 478258578 is 875852874.

478258578 is a `hidden beast` number, since 47 + 8 + 25 + 8 + 578 = 666.

It is not an unprimeable number, because it can be changed into a prime (478258577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1897726 + ... + 1897977.

It is an arithmetic number, because the mean of its divisors is an integer number (49344152).

Almost surely, 2^478258578 is an apocalyptic number.

478258578 is an abundant number, since it is smaller than the sum of its proper divisors (706001070).

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

478258578 is a wasteful number, since it uses less digits than its factorization.

478258578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795718 (or 3795715 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 54.

The square root of 478258578 is about 21869.1238507627. The cubic root of 478258578 is about 782.0255146556.

The spelling of 478258578 in words is "four hundred seventy-eight million, two hundred fifty-eight thousand, five hundred seventy-eight".