1233856 has 28 divisors (see below), whose sum is σ = 2638552. Its totient is φ = 569088.

The previous prime is 1233851. The next prime is 1233887. The reversal of 1233856 is 6583321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (94234).

2^1233856 is an apocalyptic number.

1233856 is a gapful number since it is divisible by the number (16) 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 1233856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1319276).

1233856 is an abundant number, since it is smaller than the sum of its proper divisors (1404696).

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

1233856 is a wasteful number, since it uses less digits than its factorization.

1233856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 1498 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 1233856 is about 1110.7907093598. The cubic root of 1233856 is about 107.2559743323.

The spelling of 1233856 in words is "one million, two hundred thirty-three thousand, eight hundred fifty-six".