575986640 has 40 divisors (see below), whose sum is σ = 1354232520. Its totient is φ = 227803136.

The previous prime is 575986633. The next prime is 575986643. The reversal of 575986640 is 46689575.

It can be written as a sum of positive squares in 4 ways, for example, as 84566416 + 491420224 = 9196^2 + 22168^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575986643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33329 + ... + 47568.

It is an arithmetic number, because the mean of its divisors is an integer number (33855813).

Almost surely, 2^575986640 is an apocalyptic number.

It is an amenable number.

575986640 is an abundant number, since it is smaller than the sum of its proper divisors (778245880).

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

575986640 is a wasteful number, since it uses less digits than its factorization.

575986640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80999 (or 80993 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The square root of 575986640 is about 23999.7216650527. The cubic root of 575986640 is about 832.0270963192.

The spelling of 575986640 in words is "five hundred seventy-five million, nine hundred eighty-six thousand, six hundred forty".