650900000 has 144 divisors (see below), whose sum is σ = 1677267648. Its totient is φ = 248160000.

The previous prime is 650899999. The next prime is 650900011. The reversal of 650900000 is 9056.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2299859 + ... + 2300141.

It is an arithmetic number, because the mean of its divisors is an integer number (11647692).

Almost surely, 2^650900000 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 650900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838633824).

650900000 is an abundant number, since it is smaller than the sum of its proper divisors (1026367648).

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

650900000 is an equidigital number, since it uses as much as digits as its factorization.

650900000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 650900000 is about 25512.7419145806. The cubic root of 650900000 is about 866.6387236224.

Adding to 650900000 its reverse (9056), we get a palindrome (650909056).

The spelling of 650900000 in words is "six hundred fifty million, nine hundred thousand".