648336930 has 16 divisors (see below), whose sum is σ = 1556008704. Its totient is φ = 172889840.

The previous prime is 648336911. The next prime is 648336937. The reversal of 648336930 is 39633846.

It is not an unprimeable number, because it can be changed into a prime (648336937) 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 7 ways as a sum of consecutive naturals, for example, 10805586 + ... + 10805645.

It is an arithmetic number, because the mean of its divisors is an integer number (97250544).

Almost surely, 2^648336930 is an apocalyptic number.

648336930 is an abundant number, since it is smaller than the sum of its proper divisors (907671774).

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

648336930 is a wasteful number, since it uses less digits than its factorization.

648336930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21611241.

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 648336930 is about 25462.4611929012. The cubic root of 648336930 is about 865.4996967988.

The spelling of 648336930 in words is "six hundred forty-eight million, three hundred thirty-six thousand, nine hundred thirty".