650393920 has 112 divisors (see below), whose sum is σ = 1729240128. Its totient is φ = 230952960.

The previous prime is 650393897. The next prime is 650393923. The reversal of 650393920 is 29393056.

It is a self number, because there is not a number n which added to its sum of digits gives 650393920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650393923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149212 + ... + 153508.

It is an arithmetic number, because the mean of its divisors is an integer number (15439644).

Almost surely, 2^650393920 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 650393920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864620064).

650393920 is an abundant number, since it is smaller than the sum of its proper divisors (1078846208).

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

650393920 is a wasteful number, since it uses less digits than its factorization.

650393920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368 (or 4358 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 650393920 is about 25502.8218046553. The cubic root of 650393920 is about 866.4140591870.

The spelling of 650393920 in words is "six hundred fifty million, three hundred ninety-three thousand, nine hundred twenty".