860632320 has 144 divisors (see below), whose sum is σ = 2784418560. Its totient is φ = 226516992.

The previous prime is 860632309. The next prime is 860632337. The reversal of 860632320 is 23236068.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301942 + ... + 304778.

It is an arithmetic number, because the mean of its divisors is an integer number (19336240).

Almost surely, 2^860632320 is an apocalyptic number.

860632320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 860632320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1392209280).

860632320 is an abundant number, since it is smaller than the sum of its proper divisors (1923786240).

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

860632320 is a wasteful number, since it uses less digits than its factorization.

860632320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 860632320 is about 29336.5355827848. The cubic root of 860632320 is about 951.2015525905.

Adding to 860632320 its reverse (23236068), we get a palindrome (883868388).

The spelling of 860632320 in words is "eight hundred sixty million, six hundred thirty-two thousand, three hundred twenty".