650089440 has 864 divisors, whose sum is σ = 3074355648. Its totient is φ = 121651200.

The previous prime is 650089439. The next prime is 650089459. The reversal of 650089440 is 44980056.

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

It is a junction number, because it is equal to n+sod(n) for n = 650089395 and 650089404.

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 15855820 + ... + 15855860.

It is an arithmetic number, because the mean of its divisors is an integer number (3558282).

Almost surely, 2^650089440 is an apocalyptic number.

650089440 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 650089440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1537177824).

650089440 is an abundant number, since it is smaller than the sum of its proper divisors (2424266208).

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

650089440 is a wasteful number, since it uses less digits than its factorization.

650089440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 650089440 is about 25496.8515703410. The cubic root of 650089440 is about 866.2788350190.

The spelling of 650089440 in words is "six hundred fifty million, eighty-nine thousand, four hundred forty".