659000240 has 80 divisors (see below), whose sum is σ = 1633556160. Its totient is φ = 246374400.

The previous prime is 659000231. The next prime is 659000261. The reversal of 659000240 is 42000956.

659000240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 25671²-1.

It is a tau number, because it is divible by the number of its divisors (80).

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, 203756 + ... + 206964.

It is an arithmetic number, because the mean of its divisors is an integer number (20419452).

Almost surely, 2^659000240 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 659000240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816778080).

659000240 is an abundant number, since it is smaller than the sum of its proper divisors (974555920).

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

659000240 is a wasteful number, since it uses less digits than its factorization.

659000240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390 (or 3384 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 659000240 is about 25670.9999805228. Note that the first 4 decimals coincide. The cubic root of 659000240 is about 870.2189258361.

The spelling of 659000240 in words is "six hundred fifty-nine million, two hundred forty", and thus it is an aban number.