648488432 has 20 divisors (see below), whose sum is σ = 1257340656. Its totient is φ = 324013440.

The previous prime is 648488371. The next prime is 648488447. The reversal of 648488432 is 234884846.

648488432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its 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, 10013 + ... + 37379.

Almost surely, 2^648488432 is an apocalyptic number.

It is an amenable number.

648488432 is a deficient number, since it is larger than the sum of its proper divisors (608852224).

648488432 is a wasteful number, since it uses less digits than its factorization.

648488432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28856 (or 28850 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 47.

The square root of 648488432 is about 25465.4360261119. The cubic root of 648488432 is about 865.5671075933.

The spelling of 648488432 in words is "six hundred forty-eight million, four hundred eighty-eight thousand, four hundred thirty-two".