660284832 has 96 divisors (see below), whose sum is σ = 1790558784. Its totient is φ = 212889600.

The previous prime is 660284809. The next prime is 660284839. The reversal of 660284832 is 238482066.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (660284839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749032 + ... + 749912.

It is an arithmetic number, because the mean of its divisors is an integer number (18651654).

Almost surely, 2^660284832 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 660284832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895279392).

660284832 is an abundant number, since it is smaller than the sum of its proper divisors (1130273952).

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

660284832 is a wasteful number, since it uses less digits than its factorization.

660284832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 660284832 is about 25696.0080946438. The cubic root of 660284832 is about 870.7839993256.

The spelling of 660284832 in words is "six hundred sixty million, two hundred eighty-four thousand, eight hundred thirty-two".