648866032 has 20 divisors (see below), whose sum is σ = 1261153656. Its totient is φ = 323407040.

The previous prime is 648866027. The next prime is 648866033. The reversal of 648866032 is 230668846.

648866032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 648866032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648866033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58894 + ... + 69037.

Almost surely, 2^648866032 is an apocalyptic number.

It is an amenable number.

648866032 is a deficient number, since it is larger than the sum of its proper divisors (612287624).

648866032 is a wasteful number, since it uses less digits than its factorization.

648866032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128256 (or 128250 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 648866032 is about 25472.8489180146. The cubic root of 648866032 is about 865.7350749810.

The spelling of 648866032 in words is "six hundred forty-eight million, eight hundred sixty-six thousand, thirty-two".