648387024 has 80 divisors (see below), whose sum is σ = 1727216832. Its totient is φ = 209470464.

The previous prime is 648387013. The next prime is 648387029. The reversal of 648387024 is 420783846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648387029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281622 + ... + 283914.

Almost surely, 2^648387024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648387024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (863608416).

648387024 is an abundant number, since it is smaller than the sum of its proper divisors (1078829808).

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

648387024 is a wasteful number, since it uses less digits than its factorization.

648387024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484 (or 2478 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 648387024 is about 25463.4448572851. Note that the first 3 decimals coincide. The cubic root of 648387024 is about 865.5219872793.

The spelling of 648387024 in words is "six hundred forty-eight million, three hundred eighty-seven thousand, twenty-four".