648323004 has 24 divisors (see below), whose sum is σ = 1728861568. Its totient is φ = 185235120.

The previous prime is 648322993. The next prime is 648323009. The reversal of 648323004 is 400323846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648323009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3858982 + ... + 3859149.

Almost surely, 2^648323004 is an apocalyptic number.

It is an amenable number.

648323004 is an abundant number, since it is smaller than the sum of its proper divisors (1080538564).

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

648323004 is a wasteful number, since it uses less digits than its factorization.

648323004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7718145 (or 7718143 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 648323004 is about 25462.1877300439. The cubic root of 648323004 is about 865.4934999000.

The spelling of 648323004 in words is "six hundred forty-eight million, three hundred twenty-three thousand, four".