11142242 has 16 divisors (see below), whose sum is σ = 18130392. Its totient is φ = 5114880.

The previous prime is 11142223. The next prime is 11142247. The reversal of 11142242 is 24224111.

It can be written as a sum of positive squares in 4 ways, for example, as 5755201 + 5387041 = 2399^2 + 2321^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 11142242.

It is not an unprimeable number, because it can be changed into a prime (11142247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603 + ... + 5390.

Almost surely, 2^11142242 is an apocalyptic number.

11142242 is a deficient number, since it is larger than the sum of its proper divisors (6988150).

11142242 is a wasteful number, since it uses less digits than its factorization.

11142242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053.

The product of its digits is 128, while the sum is 17.

The square root of 11142242 is about 3337.9997004194. Note that the first 3 decimals coincide. The cubic root of 11142242 is about 223.3525227936.

Adding to 11142242 its reverse (24224111), we get a palindrome (35366353).

The spelling of 11142242 in words is "eleven million, one hundred forty-two thousand, two hundred forty-two".