859280 has 40 divisors (see below), whose sum is σ = 2089152. Its totient is φ = 328064.

The previous prime is 859279. The next prime is 859297. The reversal of 859280 is 82958.

It is a tau number, because it is divible by the number of its divisors (40).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 859280.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1607 + ... + 2073.

2⁸⁵⁹²⁸⁰ is an apocalyptic number.

859280 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 859280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044576).

859280 is an abundant number, since it is smaller than the sum of its proper divisors (1229872).

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

859280 is a wasteful number, since it uses less digits than its factorization.

859280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 859280 is about 926.9735702813. The cubic root of 859280 is about 95.0703080640.

The spelling of 859280 in words is "eight hundred fifty-nine thousand, two hundred eighty".