860254720 has 80 divisors (see below), whose sum is σ = 2221342200. Its totient is φ = 317620224.

The previous prime is 860254709. The next prime is 860254721. The reversal of 860254720 is 27452068.

It can be written as a sum of positive squares in 4 ways, for example, as 255488256 + 604766464 = 15984^2 + 24592^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (860254721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20356 + ... + 46204.

Almost surely, 2^860254720 is an apocalyptic number.

860254720 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 860254720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110671100).

860254720 is an abundant number, since it is smaller than the sum of its proper divisors (1361087480).

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

860254720 is a wasteful number, since it uses less digits than its factorization.

860254720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25885 (or 25869 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 860254720 is about 29330.0992156522. The cubic root of 860254720 is about 951.0624199088.

The spelling of 860254720 in words is "eight hundred sixty million, two hundred fifty-four thousand, seven hundred twenty".