648452088 has 64 divisors (see below), whose sum is σ = 1826668800. Its totient is φ = 213101280.

The previous prime is 648452069. The next prime is 648452089. The reversal of 648452088 is 880254846.

648452088 is a `hidden beast` number, since 6 + 48 + 4 + 520 + 88 = 666.

It is a super-2 number, since 2×648452088² = 840980220863119488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648452089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5806 + ... + 36477.

It is an arithmetic number, because the mean of its divisors is an integer number (28541700).

Almost surely, 2^648452088 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 648452088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913334400).

648452088 is an abundant number, since it is smaller than the sum of its proper divisors (1178216712).

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

648452088 is a wasteful number, since it uses less digits than its factorization.

648452088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42369 (or 42359 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 648452088 is about 25464.7224214206. The cubic root of 648452088 is about 865.5509372927.

The spelling of 648452088 in words is "six hundred forty-eight million, four hundred fifty-two thousand, eighty-eight".