578240 has 56 divisors (see below), whose sum is σ = 1493520. Its totient is φ = 211968.

The previous prime is 578213. The next prime is 578251. The reversal of 578240 is 42875.

It is a super-2 number, since 2×578240² = 668722995200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4091 + ... + 4229.

It is an arithmetic number, because the mean of its divisors is an integer number (26670).

2⁵⁷⁸²⁴⁰ 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 578240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746760).

578240 is an abundant number, since it is smaller than the sum of its proper divisors (915280).

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

578240 is a wasteful number, since it uses less digits than its factorization.

578240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 578240 is about 760.4209360611. The cubic root of 578240 is about 83.3110696080.

It can be divided in two parts, 578 and 240, that added together give a palindrome (818).

The spelling of 578240 in words is "five hundred seventy-eight thousand, two hundred forty".