648079488 has 384 divisors, whose sum is σ = 2302344000. Its totient is φ = 178827264.

The previous prime is 648079477. The next prime is 648079507. The reversal of 648079488 is 884970846.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7281748 + ... + 7281836.

Almost surely, 2^648079488 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 648079488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151172000).

648079488 is an abundant number, since it is smaller than the sum of its proper divisors (1654264512).

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

648079488 is a wasteful number, since it uses less digits than its factorization.

648079488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The square root of 648079488 is about 25457.4053666119. The cubic root of 648079488 is about 865.3851239272.

The spelling of 648079488 in words is "six hundred forty-eight million, seventy-nine thousand, four hundred eighty-eight".