650456320 has 72 divisors (see below), whose sum is σ = 1566713736. Its totient is φ = 258736128.

The previous prime is 650456311. The next prime is 650456357. The reversal of 650456320 is 23654056.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 650454016 = 48^2 + 25504^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245724 + ... + 248356.

It is an arithmetic number, because the mean of its divisors is an integer number (21759913).

Almost surely, 2^650456320 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 650456320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (783356868).

650456320 is an abundant number, since it is smaller than the sum of its proper divisors (916257416).

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

650456320 is a wasteful number, since it uses less digits than its factorization.

650456320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 650456320 is about 25504.0451693452. The cubic root of 650456320 is about 866.4417667586.

The spelling of 650456320 in words is "six hundred fifty million, four hundred fifty-six thousand, three hundred twenty".