11442742 has 4 divisors (see below), whose sum is σ = 17164116. Its totient is φ = 5721370.

The previous prime is 11442737. The next prime is 11442779. The reversal of 11442742 is 24724411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24724411 = 1031 ⋅23981.

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, 2860684 + ... + 2860687.

It is an arithmetic number, because the mean of its divisors is an integer number (4291029).

Almost surely, 2^11442742 is an apocalyptic number.

11442742 is a deficient number, since it is larger than the sum of its proper divisors (5721374).

11442742 is an equidigital number, since it uses as much as digits as its factorization.

11442742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721373.

The product of its digits is 1792, while the sum is 25.

The square root of 11442742 is about 3382.7122254191. The cubic root of 11442742 is about 225.3426351641.

The spelling of 11442742 in words is "eleven million, four hundred forty-two thousand, seven hundred forty-two".