1180642 has 4 divisors (see below), whose sum is σ = 1770966. Its totient is φ = 590320.

The previous prime is 1180637. The next prime is 1180643. The reversal of 1180642 is 2460811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 121801 = 1029^2 + 349^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 295159 + ... + 295162.

2^1180642 is an apocalyptic number.

1180642 is a deficient number, since it is larger than the sum of its proper divisors (590324).

1180642 is an equidigital number, since it uses as much as digits as its factorization.

1180642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590323.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1180642 is about 1086.5735133897. The cubic root of 1180642 is about 105.6913413282.

The spelling of 1180642 in words is "one million, one hundred eighty thousand, six hundred forty-two".