659990344 has 32 divisors (see below), whose sum is σ = 1357828920. Its totient is φ = 298861056.

The previous prime is 659990339. The next prime is 659990389. The reversal of 659990344 is 443099956.

659990344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 507961444 + 152028900 = 22538^2 + 12330^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54357 + ... + 65380.

Almost surely, 2^659990344 is an apocalyptic number.

It is an amenable number.

659990344 is an abundant number, since it is smaller than the sum of its proper divisors (697838576).

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

659990344 is a wasteful number, since it uses less digits than its factorization.

659990344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119809 (or 119805 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 659990344 is about 25690.2772269978. The cubic root of 659990344 is about 870.6545230961.

The spelling of 659990344 in words is "six hundred fifty-nine million, nine hundred ninety thousand, three hundred forty-four".