11782742 has 4 divisors (see below), whose sum is σ = 17674116. Its totient is φ = 5891370.

The previous prime is 11782741. The next prime is 11782747. The reversal of 11782742 is 24728711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24728711 = 7 ⋅3532673.

It is a junction number, because it is equal to n+sod(n) for n = 11782699 and 11782708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11782741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2945684 + ... + 2945687.

It is an arithmetic number, because the mean of its divisors is an integer number (4418529).

Almost surely, 2^11782742 is an apocalyptic number.

11782742 is a deficient number, since it is larger than the sum of its proper divisors (5891374).

11782742 is an equidigital number, since it uses as much as digits as its factorization.

11782742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5891373.

The product of its digits is 6272, while the sum is 32.

The square root of 11782742 is about 3432.5998892967. The cubic root of 11782742 is about 227.5527680197.

The spelling of 11782742 in words is "eleven million, seven hundred eighty-two thousand, seven hundred forty-two".