659873344 has 105 divisors (see below), whose sum is σ = 1497142167. Its totient is φ = 288527616.

The previous prime is 659873341. The next prime is 659873351. The reversal of 659873344 is 443378956.

The square root of 659873344 is 25688.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 327175744 + 332697600 = 18088^2 + 18240^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (659873341) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 34730167 + ... + 34730185.

Almost surely, 2^659873344 is an apocalyptic number.

659873344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

659873344 is the 25688-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 659873344

659873344 is an abundant number, since it is smaller than the sum of its proper divisors (837268823).

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

659873344 is an frugal number, since it uses more digits than its factorization.

659873344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 34 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 49.

The cubic root of 659873344 is about 870.6030715356.

Multiplying 659873344 by its sum of digits (49), we get a square (32333793856 = 179816²).

The spelling of 659873344 in words is "six hundred fifty-nine million, eight hundred seventy-three thousand, three hundred forty-four".