650740608 has 256 divisors, whose sum is σ = 2257382400. Its totient is φ = 180652032.

The previous prime is 650740591. The next prime is 650740613. The reversal of 650740608 is 806047056.

It is a happy number.

650740608 is a `hidden beast` number, since 6 + 5 + 0 + 7 + 40 + 608 = 666.

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

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 31 ways as a sum of consecutive naturals, for example, 894741 + ... + 895467.

It is an arithmetic number, because the mean of its divisors is an integer number (8817900).

Almost surely, 2^650740608 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 650740608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128691200).

650740608 is an abundant number, since it is smaller than the sum of its proper divisors (1606641792).

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

650740608 is a wasteful number, since it uses less digits than its factorization.

650740608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 650740608 is about 25509.6179508828. The cubic root of 650740608 is about 866.5679771911.

The spelling of 650740608 in words is "six hundred fifty million, seven hundred forty thousand, six hundred eight".