650019020 has 48 divisors (see below), whose sum is σ = 1572372480. Its totient is φ = 221102784.

The previous prime is 650019011. The next prime is 650019037. The reversal of 650019020 is 20910056.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500 + ... + 36059.

It is an arithmetic number, because the mean of its divisors is an integer number (32757760).

Almost surely, 2^650019020 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 650019020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786186240).

650019020 is an abundant number, since it is smaller than the sum of its proper divisors (922353460).

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

650019020 is a wasteful number, since it uses less digits than its factorization.

650019020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36702 (or 36700 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 650019020 is about 25495.4705781243. The cubic root of 650019020 is about 866.2475544215.

Adding to 650019020 its reverse (20910056), we get a palindrome (670929076).

The spelling of 650019020 in words is "six hundred fifty million, nineteen thousand, twenty".