648604530 has 64 divisors (see below), whose sum is σ = 1976705280. Its totient is φ = 148252032.

The previous prime is 648604529. The next prime is 648604571. The reversal of 648604530 is 35406846.

648604530 is a `hidden beast` number, since 6 + 48 + 604 + 5 + 3 + 0 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169699 + ... + 173478.

It is an arithmetic number, because the mean of its divisors is an integer number (30886020).

Almost surely, 2^648604530 is an apocalyptic number.

648604530 is an abundant number, since it is smaller than the sum of its proper divisors (1328100750).

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

648604530 is a wasteful number, since it uses less digits than its factorization.

648604530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343200 (or 343194 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 648604530 is about 25467.7154452456. The cubic root of 648604530 is about 865.6187582776.

The spelling of 648604530 in words is "six hundred forty-eight million, six hundred four thousand, five hundred thirty".