648289382 has 16 divisors (see below), whose sum is σ = 1051819440. Its totient is φ = 297901152.

The previous prime is 648289363. The next prime is 648289423. The reversal of 648289382 is 283982846.

It is a self number, because there is not a number n which added to its sum of digits gives 648289382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48488 + ... + 60395.

It is an arithmetic number, because the mean of its divisors is an integer number (65738715).

Almost surely, 2^648289382 is an apocalyptic number.

648289382 is a deficient number, since it is larger than the sum of its proper divisors (403530058).

648289382 is a wasteful number, since it uses less digits than its factorization.

648289382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109127.

The product of its digits is 1327104, while the sum is 50.

The square root of 648289382 is about 25461.5274875644. The cubic root of 648289382 is about 865.4785381575.

The spelling of 648289382 in words is "six hundred forty-eight million, two hundred eighty-nine thousand, three hundred eighty-two".