648415296 has 63 divisors (see below), whose sum is σ = 1860318733. Its totient is φ = 215934720.

The previous prime is 648415283. The next prime is 648415301. The reversal of 648415296 is 692514846.

The square root of 648415296 is 25464.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 427000896 + 221414400 = 20664^2 + 14880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 610606 + ... + 611666.

Almost surely, 2^648415296 is an apocalyptic number.

648415296 is the 25464-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648415296

648415296 is an abundant number, since it is smaller than the sum of its proper divisors (1211903437).

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

648415296 is an equidigital number, since it uses as much as digits as its factorization.

648415296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140 (or 1066 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The cubic root of 648415296 is about 865.5345670509.

The spelling of 648415296 in words is "six hundred forty-eight million, four hundred fifteen thousand, two hundred ninety-six".