648470832 has 80 divisors (see below), whose sum is σ = 1772886528. Its totient is φ = 203822080.

The previous prime is 648470807. The next prime is 648470833. The reversal of 648470832 is 238074846.

It is not an unprimeable number, because it can be changed into a prime (648470833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74248 + ... + 82520.

Almost surely, 2^648470832 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 648470832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (886443264).

648470832 is an abundant number, since it is smaller than the sum of its proper divisors (1124415696).

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

648470832 is a wasteful number, since it uses less digits than its factorization.

648470832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8378 (or 8372 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 648470832 is about 25465.0904573300. The cubic root of 648470832 is about 865.5592770147.

The spelling of 648470832 in words is "six hundred forty-eight million, four hundred seventy thousand, eight hundred thirty-two".