659469312 has 132 divisors (see below), whose sum is σ = 1920249760. Its totient is φ = 217976832.

The previous prime is 659469311. The next prime is 659469401. The reversal of 659469312 is 213964956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659469311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1501989 + ... + 1502427.

Almost surely, 2^659469312 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 659469312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960124880).

659469312 is an abundant number, since it is smaller than the sum of its proper divisors (1260780448).

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

659469312 is a wasteful number, since it uses less digits than its factorization.

659469312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 607 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 659469312 is about 25680.1345790866. The cubic root of 659469312 is about 870.4253488869.

The spelling of 659469312 in words is "six hundred fifty-nine million, four hundred sixty-nine thousand, three hundred twelve".