1230856 has 32 divisors (see below), whose sum is σ = 2566080. Its totient is φ = 548800.

The previous prime is 1230829. The next prime is 1230863. The reversal of 1230856 is 6580321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230856.

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, 6150 + ... + 6346.

It is an arithmetic number, because the mean of its divisors is an integer number (80190).

2^1230856 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 1230856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283040).

1230856 is an abundant number, since it is smaller than the sum of its proper divisors (1335224).

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

1230856 is a wasteful number, since it uses less digits than its factorization.

1230856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1230856 is about 1109.4394981251. The cubic root of 1230856 is about 107.1689763200.

The spelling of 1230856 in words is "one million, two hundred thirty thousand, eight hundred fifty-six".