842560 has 28 divisors (see below), whose sum is σ = 2007108. Its totient is φ = 336896.

The previous prime is 842551. The next prime is 842581. The reversal of 842560 is 65248.

It can be written as a sum of positive squares in 2 ways, for example, as 215296 + 627264 = 464^2 + 792^2 .

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997 + ... + 1636.

2⁸⁴²⁵⁶⁰ is an apocalyptic number.

842560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

842560 is an abundant number, since it is smaller than the sum of its proper divisors (1164548).

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

842560 is a wasteful number, since it uses less digits than its factorization.

842560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650 (or 2640 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 842560 is about 917.9106710350. The cubic root of 842560 is about 94.4496339581.

The spelling of 842560 in words is "eight hundred forty-two thousand, five hundred sixty".