650943040 has 112 divisors (see below), whose sum is σ = 1780153920. Its totient is φ = 224225280.

The previous prime is 650943011. The next prime is 650943049. The reversal of 650943040 is 40349056.

It is a junction number, because it is equal to n+sod(n) for n = 650942993 and 650943011.

It is not an unprimeable number, because it can be changed into a prime (650943049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62014 + ... + 71746.

Almost surely, 2^650943040 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 650943040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (890076960).

650943040 is an abundant number, since it is smaller than the sum of its proper divisors (1129210880).

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

650943040 is a wasteful number, since it uses less digits than its factorization.

650943040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9780 (or 9770 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 650943040 is about 25513.5854007233. The cubic root of 650943040 is about 866.6578250249.

The spelling of 650943040 in words is "six hundred fifty million, nine hundred forty-three thousand, forty".