650240 has 44 divisors (see below), whose sum is σ = 1572096. Its totient is φ = 258048.

The previous prime is 650227. The next prime is 650261. The reversal of 650240 is 42056.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5057 + ... + 5183.

2⁶⁵⁰²⁴⁰ 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 650240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786048).

650240 is an abundant number, since it is smaller than the sum of its proper divisors (921856).

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

650240 is a wasteful number, since it uses less digits than its factorization.

650240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 650240 is about 806.3746027747. The cubic root of 650240 is about 86.6345706266.

Adding to 650240 its reverse (42056), we get a palindrome (692296).

The spelling of 650240 in words is "six hundred fifty thousand, two hundred forty".