578740 has 24 divisors (see below), whose sum is σ = 1280160. Its totient is φ = 219168.

The previous prime is 578729. The next prime is 578741. The reversal of 578740 is 47875.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578741) by changing a digit.

578740 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382 + ... + 1141.

It is an arithmetic number, because the mean of its divisors is an integer number (53340).

2⁵⁷⁸⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

578740 is an abundant number, since it is smaller than the sum of its proper divisors (701420).

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

578740 is a wasteful number, since it uses less digits than its factorization.

578740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 578740 is about 760.7496302990. The cubic root of 578740 is about 83.3350755191.

The spelling of 578740 in words is "five hundred seventy-eight thousand, seven hundred forty".