650522340 has 480 divisors, whose sum is σ = 2458874880. Its totient is φ = 142331904.

The previous prime is 650522339. The next prime is 650522381. The reversal of 650522340 is 43225056.

650522340 is a `hidden beast` number, since 650 + 5 + 2 + 2 + 3 + 4 + 0 = 666.

650522340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 8234421 + ... + 8234499.

It is an arithmetic number, because the mean of its divisors is an integer number (5122656).

Almost surely, 2^650522340 is an apocalyptic number.

650522340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650522340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1229437440).

650522340 is an abundant number, since it is smaller than the sum of its proper divisors (1808352540).

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

650522340 is a wasteful number, since it uses less digits than its factorization.

650522340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 650522340 is about 25505.3394409876. The cubic root of 650522340 is about 866.4710797955.

Adding to 650522340 its reverse (43225056), we get a palindrome (693747396).

The spelling of 650522340 in words is "six hundred fifty million, five hundred twenty-two thousand, three hundred forty".