578438256 has 80 divisors (see below), whose sum is σ = 1636145280. Its totient is φ = 174639360.

The previous prime is 578438251. The next prime is 578438281. The reversal of 578438256 is 652834875.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578438251) 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, 152835 + ... + 156573.

It is an arithmetic number, because the mean of its divisors is an integer number (20451816).

Almost surely, 2^578438256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 578438256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818072640).

578438256 is an abundant number, since it is smaller than the sum of its proper divisors (1057707024).

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

578438256 is a wasteful number, since it uses less digits than its factorization.

578438256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054 (or 4048 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The square root of 578438256 is about 24050.7433564952. The cubic root of 578438256 is about 833.2058989491.

It can be divided in two parts, 578 and 438256, that added together give a palindrome (438834).

The spelling of 578438256 in words is "five hundred seventy-eight million, four hundred thirty-eight thousand, two hundred fifty-six".