648538336 has 48 divisors (see below), whose sum is σ = 1325540160. Its totient is φ = 312122880.

The previous prime is 648538333. The next prime is 648538349. The reversal of 648538336 is 633835846.

648538336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648538333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88210 + ... + 95278.

It is an arithmetic number, because the mean of its divisors is an integer number (27615420).

Almost surely, 2^648538336 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 648538336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662770080).

648538336 is an abundant number, since it is smaller than the sum of its proper divisors (677001824).

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

648538336 is a wasteful number, since it uses less digits than its factorization.

648538336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7187 (or 7179 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The square root of 648538336 is about 25466.4158451872. The cubic root of 648538336 is about 865.5893100726.

The spelling of 648538336 in words is "six hundred forty-eight million, five hundred thirty-eight thousand, three hundred thirty-six".