11142424 has 8 divisors (see below), whose sum is σ = 20892060. Its totient is φ = 5571208.

The previous prime is 11142413. The next prime is 11142427. The reversal of 11142424 is 42424111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11142424² = 248307225191552, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696394 + ... + 696409.

Almost surely, 2^11142424 is an apocalyptic number.

It is an amenable number.

11142424 is a deficient number, since it is larger than the sum of its proper divisors (9749636).

11142424 is a wasteful number, since it uses less digits than its factorization.

11142424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392809 (or 1392805 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 11142424 is about 3338.0269621440. The cubic root of 11142424 is about 223.3537388845.

Adding to 11142424 its reverse (42424111), we get a palindrome (53566535).

The spelling of 11142424 in words is "eleven million, one hundred forty-two thousand, four hundred twenty-four".