648454400 has 216 divisors, whose sum is σ = 1791427008. Its totient is φ = 230400000.

The previous prime is 648454399. The next prime is 648454403. The reversal of 648454400 is 4454846.

It is not an unprimeable number, because it can be changed into a prime (648454403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4294325 + ... + 4294475.

Almost surely, 2^648454400 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 648454400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895713504).

648454400 is an abundant number, since it is smaller than the sum of its proper divisors (1142972608).

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

648454400 is a wasteful number, since it uses less digits than its factorization.

648454400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 648454400 is about 25464.7678175160. The cubic root of 648454400 is about 865.5519659739.

The spelling of 648454400 in words is "six hundred forty-eight million, four hundred fifty-four thousand, four hundred".