650949120 has 240 divisors, whose sum is σ = 2374669440. Its totient is φ = 164339712.

The previous prime is 650949113. The next prime is 650949121. The reversal of 650949120 is 21949056.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650949121) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 437017 + ... + 438503.

It is an arithmetic number, because the mean of its divisors is an integer number (9894456).

Almost surely, 2^650949120 is an apocalyptic number.

650949120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650949120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187334720).

650949120 is an abundant number, since it is smaller than the sum of its proper divisors (1723720320).

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

650949120 is a wasteful number, since it uses less digits than its factorization.

650949120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 650949120 is about 25513.7045526517. The cubic root of 650949120 is about 866.6605232964.

The spelling of 650949120 in words is "six hundred fifty million, nine hundred forty-nine thousand, one hundred twenty".