1206656 has 32 divisors (see below), whose sum is σ = 2625480. Its totient is φ = 547840.

The previous prime is 1206637. The next prime is 1206679. The reversal of 1206656 is 6566021.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980 + ... + 1836.

2^1206656 is an apocalyptic number.

1206656 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 1206656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312740).

1206656 is an abundant number, since it is smaller than the sum of its proper divisors (1418824).

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

1206656 is an equidigital number, since it uses as much as digits as its factorization.

1206656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1206656 is about 1098.4789483645. The cubic root of 1206656 is about 106.4619685375.

It can be divided in two parts, 120 and 6656, that added together give a palindrome (6776).

The spelling of 1206656 in words is "one million, two hundred six thousand, six hundred fifty-six".