571378864 has 80 divisors (see below), whose sum is σ = 1308541248. Its totient is φ = 236583936.

The previous prime is 571378853. The next prime is 571378867. The reversal of 571378864 is 468873175.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (571378867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716514 + ... + 717310.

Almost surely, 2^571378864 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 571378864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654270624).

571378864 is an abundant number, since it is smaller than the sum of its proper divisors (737162384).

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

571378864 is a wasteful number, since it uses less digits than its factorization.

571378864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 1016 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The square root of 571378864 is about 23903.5324586137. The cubic root of 571378864 is about 829.8024710184.

The spelling of 571378864 in words is "five hundred seventy-one million, three hundred seventy-eight thousand, eight hundred sixty-four".