650873240 has 32 divisors (see below), whose sum is σ = 1469201760. Its totient is φ = 259507200.

The previous prime is 650873239. The next prime is 650873243. The reversal of 650873240 is 42378056.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 650873240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650873243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13721 + ... + 38600.

It is an arithmetic number, because the mean of its divisors is an integer number (45912555).

Almost surely, 2^650873240 is an apocalyptic number.

It is an amenable number.

650873240 is an abundant number, since it is smaller than the sum of its proper divisors (818328520).

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

650873240 is a wasteful number, since it uses less digits than its factorization.

650873240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52643 (or 52639 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 650873240 is about 25512.2174653635. The cubic root of 650873240 is about 866.6268469542.

The spelling of 650873240 in words is "six hundred fifty million, eight hundred seventy-three thousand, two hundred forty".