648507360 has 96 divisors (see below), whose sum is σ = 2046915360. Its totient is φ = 172587008.

The previous prime is 648507359. The next prime is 648507407. The reversal of 648507360 is 63705846.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 312406 + ... + 314474.

It is an arithmetic number, because the mean of its divisors is an integer number (21322035).

Almost surely, 2^648507360 is an apocalyptic number.

648507360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648507360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023457680).

648507360 is an abundant number, since it is smaller than the sum of its proper divisors (1398408000).

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

648507360 is a wasteful number, since it uses less digits than its factorization.

648507360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 648507360 is about 25465.8076643958. The cubic root of 648507360 is about 865.5755288665.

The spelling of 648507360 in words is "six hundred forty-eight million, five hundred seven thousand, three hundred sixty".