659449332 has 18 divisors (see below), whose sum is σ = 1666941458. Its totient is φ = 219816432.

The previous prime is 659449331. The next prime is 659449379. The reversal of 659449332 is 233944956.

It can be written as a sum of positive squares in only one way, i.e., 566249616 + 93199716 = 23796^2 + 9654^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659449331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9158983 + ... + 9159054.

Almost surely, 2^659449332 is an apocalyptic number.

It is an amenable number.

659449332 is an abundant number, since it is smaller than the sum of its proper divisors (1007492126).

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

659449332 is a wasteful number, since it uses less digits than its factorization.

659449332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18318047 (or 18318042 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 659449332 is about 25679.7455594872. The cubic root of 659449332 is about 870.4165583469.

The spelling of 659449332 in words is "six hundred fifty-nine million, four hundred forty-nine thousand, three hundred thirty-two".