648382944 has 48 divisors (see below), whose sum is σ = 1856736000. Its totient is φ = 196479360.

The previous prime is 648382927. The next prime is 648382951. The reversal of 648382944 is 449283846.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 648382893 and 648382902.

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, 305944 + ... + 308055.

It is an arithmetic number, because the mean of its divisors is an integer number (38682000).

Almost surely, 2^648382944 is an apocalyptic number.

It is an amenable number.

648382944 is an abundant number, since it is smaller than the sum of its proper divisors (1208353056).

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

648382944 is a wasteful number, since it uses less digits than its factorization.

648382944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614023 (or 614015 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The square root of 648382944 is about 25463.3647423116. The cubic root of 648382944 is about 865.5201718322.

The spelling of 648382944 in words is "six hundred forty-eight million, three hundred eighty-two thousand, nine hundred forty-four".