578263720 has 48 divisors (see below), whose sum is σ = 1323838260. Its totient is φ = 227330304.

The previous prime is 578263709. The next prime is 578263729. The reversal of 578263720 is 27362875.

578263720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 486908356 + 91355364 = 22066^2 + 9558^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (578263729) 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, 137164 + ... + 141316.

Almost surely, 2^578263720 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 578263720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661919130).

578263720 is an abundant number, since it is smaller than the sum of its proper divisors (745574540).

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

578263720 is a wasteful number, since it uses less digits than its factorization.

578263720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282 (or 4219 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 578263720 is about 24047.1145878253. The cubic root of 578263720 is about 833.1220876104.

The spelling of 578263720 in words is "five hundred seventy-eight million, two hundred sixty-three thousand, seven hundred twenty".