578285838 has 128 divisors (see below), whose sum is σ = 1497968640. Its totient is φ = 163745280.

The previous prime is 578285831. The next prime is 578285857. The reversal of 578285838 is 838582875.

It is a happy number.

578285838 is a `hidden beast` number, since 57 + 8 + 2 + 8 + 583 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578285831) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 560383 + ... + 561413.

It is an arithmetic number, because the mean of its divisors is an integer number (11702880).

Almost surely, 2^578285838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 578285838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748984320).

578285838 is an abundant number, since it is smaller than the sum of its proper divisors (919682802).

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

578285838 is a wasteful number, since it uses less digits than its factorization.

578285838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1113 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The square root of 578285838 is about 24047.5744722831. The cubic root of 578285838 is about 833.1327094995.

The spelling of 578285838 in words is "five hundred seventy-eight million, two hundred eighty-five thousand, eight hundred thirty-eight".