648817338 has 32 divisors (see below), whose sum is σ = 1401656256. Its totient is φ = 199035648.

The previous prime is 648817331. The next prime is 648817343. The reversal of 648817338 is 833718846.

648817338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (648817331) 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, 13945 + ... + 38627.

It is an arithmetic number, because the mean of its divisors is an integer number (43801758).

Almost surely, 2^648817338 is an apocalyptic number.

648817338 is an abundant number, since it is smaller than the sum of its proper divisors (752838918).

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

648817338 is a wasteful number, since it uses less digits than its factorization.

648817338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25038.

The product of its digits is 774144, while the sum is 48.

The square root of 648817338 is about 25471.8930980797. The cubic root of 648817338 is about 865.7134181436.

The spelling of 648817338 in words is "six hundred forty-eight million, eight hundred seventeen thousand, three hundred thirty-eight".