1180656 has 50 divisors (see below), whose sum is σ = 3420912. Its totient is φ = 393120.

The previous prime is 1180643. The next prime is 1180657. The reversal of 1180656 is 6560811.

1180656 is a `hidden beast` number, since 1 + 1 + 8 + 0 + 656 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180657) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 841 + ... + 1751.

2^1180656 is an apocalyptic number.

1180656 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 1180656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1710456).

1180656 is an abundant number, since it is smaller than the sum of its proper divisors (2240256).

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

1180656 is an equidigital number, since it uses as much as digits as its factorization.

1180656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1180656 is about 1086.5799556406. The cubic root of 1180656 is about 105.6917590876.

The spelling of 1180656 in words is "one million, one hundred eighty thousand, six hundred fifty-six".