11820742 has 4 divisors (see below), whose sum is σ = 17731116. Its totient is φ = 5910370.

The previous prime is 11820727. The next prime is 11820769. The reversal of 11820742 is 24702811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 2955184 + ... + 2955187.

It is an arithmetic number, because the mean of its divisors is an integer number (4432779).

Almost surely, 2^11820742 is an apocalyptic number.

11820742 is a deficient number, since it is larger than the sum of its proper divisors (5910374).

11820742 is an equidigital number, since it uses as much as digits as its factorization.

11820742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910373.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 11820742 is about 3438.1305967051. The cubic root of 11820742 is about 227.7971289704.

It can be divided in two parts, 118207 and 42, that multiplied together give a palindrome (4964694).

The spelling of 11820742 in words is "eleven million, eight hundred twenty thousand, seven hundred forty-two".