659441772 has 108 divisors (see below), whose sum is σ = 1871801568. Its totient is φ = 195518400.

The previous prime is 659441767. The next prime is 659441779. The reversal of 659441772 is 277144956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659441779) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 203122 + ... + 206342.

It is an arithmetic number, because the mean of its divisors is an integer number (17331496).

Almost surely, 2^659441772 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 659441772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935900784).

659441772 is an abundant number, since it is smaller than the sum of its proper divisors (1212359796).

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

659441772 is a wasteful number, since it uses less digits than its factorization.

659441772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300 (or 3284 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 659441772 is about 25679.5983613451. The cubic root of 659441772 is about 870.4132321503.

The spelling of 659441772 in words is "six hundred fifty-nine million, four hundred forty-one thousand, seven hundred seventy-two".