11142884 has 6 divisors (see below), whose sum is σ = 19500054. Its totient is φ = 5571440.

The previous prime is 11142881. The next prime is 11142893. The reversal of 11142884 is 48824111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5953600 + 5189284 = 2440^2 + 2278^2 .

It is not an unprimeable number, because it can be changed into a prime (11142881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392857 + ... + 1392864.

It is an arithmetic number, because the mean of its divisors is an integer number (3250009).

Almost surely, 2^11142884 is an apocalyptic number.

It is an amenable number.

11142884 is a deficient number, since it is larger than the sum of its proper divisors (8357170).

11142884 is a wasteful number, since it uses less digits than its factorization.

11142884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785725 (or 2785723 counting only the distinct ones).

The product of its digits is 2048, while the sum is 29.

The square root of 11142884 is about 3338.0958644113. The cubic root of 11142884 is about 223.3568124619.

Adding to 11142884 its reverse (48824111), we get a palindrome (59966995).

The spelling of 11142884 in words is "eleven million, one hundred forty-two thousand, eight hundred eighty-four".