1181442 has 8 divisors (see below), whose sum is σ = 2362896. Its totient is φ = 393812.

The previous prime is 1181437. The next prime is 1181443. The reversal of 1181442 is 2441811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1181442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1181443) 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, 98448 + ... + 98459.

It is an arithmetic number, because the mean of its divisors is an integer number (295362).

2^1181442 is an apocalyptic number.

1181442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1181442 is a wasteful number, since it uses less digits than its factorization.

1181442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196912.

The product of its digits is 256, while the sum is 21.

The square root of 1181442 is about 1086.9415807669. The cubic root of 1181442 is about 105.7152079992.

The spelling of 1181442 in words is "one million, one hundred eighty-one thousand, four hundred forty-two".