11742243 has 16 divisors (see below), whose sum is σ = 15972000. Its totient is φ = 7672320.

The previous prime is 11742217. The next prime is 11742251. The reversal of 11742243 is 34224711.

It is a happy number.

It is not a de Polignac number, because 11742243 - 2⁶ = 11742179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11742043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48603 + ... + 48843.

It is an arithmetic number, because the mean of its divisors is an integer number (998250).

Almost surely, 2^11742243 is an apocalyptic number.

11742243 is a deficient number, since it is larger than the sum of its proper divisors (4229757).

11742243 is a wasteful number, since it uses less digits than its factorization.

11742243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its digits is 1344, while the sum is 24.

The square root of 11742243 is about 3426.6956386583. The cubic root of 11742243 is about 227.2917580816.

Adding to 11742243 its reverse (34224711), we get a palindrome (45966954).

The spelling of 11742243 in words is "eleven million, seven hundred forty-two thousand, two hundred forty-three".