664000468 has 12 divisors (see below), whose sum is σ = 1162231252. Its totient is φ = 331934400.

The previous prime is 664000459. The next prime is 664000487. The reversal of 664000468 is 864000466.

It can be written as a sum of positive squares in 2 ways, for example, as 243422404 + 420578064 = 15602^2 + 20508^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11518 + ... + 38218.

Almost surely, 2^664000468 is an apocalyptic number.

It is an amenable number.

664000468 is a deficient number, since it is larger than the sum of its proper divisors (498230784).

664000468 is a wasteful number, since it uses less digits than its factorization.

664000468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32922 (or 32920 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 664000468 is about 25768.2065344098. The cubic root of 664000468 is about 872.4143392557.

The spelling of 664000468 in words is "six hundred sixty-four million, four hundred sixty-eight", and thus it is an aban number.