659249448 has 256 divisors, whose sum is σ = 2039869440. Its totient is φ = 174873600.

The previous prime is 659249429. The next prime is 659249449. The reversal of 659249448 is 844942956.

It is a self number, because there is not a number n which added to its sum of digits gives 659249448.

It is not an unprimeable number, because it can be changed into a prime (659249449) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9839511 + ... + 9839577.

It is an arithmetic number, because the mean of its divisors is an integer number (7968240).

Almost surely, 2^659249448 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 659249448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1019934720).

659249448 is an abundant number, since it is smaller than the sum of its proper divisors (1380619992).

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

659249448 is a wasteful number, since it uses less digits than its factorization.

659249448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 204 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 659249448 is about 25675.8534035385. The cubic root of 659249448 is about 870.3286062146.

The spelling of 659249448 in words is "six hundred fifty-nine million, two hundred forty-nine thousand, four hundred forty-eight".