1180646 has 4 divisors (see below), whose sum is σ = 1770972. Its totient is φ = 590322.

The previous prime is 1180643. The next prime is 1180657. The reversal of 1180646 is 6460811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6460811 = 7 ⋅922973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 295160 + ... + 295163.

It is an arithmetic number, because the mean of its divisors is an integer number (442743).

2^1180646 is an apocalyptic number.

1180646 is a deficient number, since it is larger than the sum of its proper divisors (590326).

1180646 is an equidigital number, since it uses as much as digits as its factorization.

1180646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590325.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1180646 is about 1086.5753540367. The cubic root of 1180646 is about 105.6914606883.

The spelling of 1180646 in words is "one million, one hundred eighty thousand, six hundred forty-six".