578000640 has 144 divisors (see below), whose sum is σ = 2109800448. Its totient is φ = 132108288.

The previous prime is 578000627. The next prime is 578000659. The reversal of 578000640 is 46000875.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 578000598 and 578000607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16129 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (14651392).

Almost surely, 2^578000640 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 578000640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1054900224).

578000640 is an abundant number, since it is smaller than the sum of its proper divisors (1531799808).

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

578000640 is a wasteful number, since it uses less digits than its factorization.

578000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21534 (or 21520 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 578000640 is about 24041.6438705842. The cubic root of 578000640 is about 832.9957259996.

The spelling of 578000640 in words is "five hundred seventy-eight million, six hundred forty", and thus it is an aban number.