648453312 has 84 divisors (see below), whose sum is σ = 2001672400. Its totient is φ = 199521792.

The previous prime is 648453307. The next prime is 648453331. The reversal of 648453312 is 213354846.

648453312 is a `hidden beast` number, since 648 + 4 + 5 + 3 + 3 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 35812 + ... + 50787.

Almost surely, 2^648453312 is an apocalyptic number.

It is an amenable number.

648453312 is an abundant number, since it is smaller than the sum of its proper divisors (1353219088).

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

648453312 is a wasteful number, since it uses less digits than its factorization.

648453312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86630 (or 86617 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 648453312 is about 25464.7464546577. The cubic root of 648453312 is about 865.5514818889.

The spelling of 648453312 in words is "six hundred forty-eight million, four hundred fifty-three thousand, three hundred twelve".