11424423 has 4 divisors (see below), whose sum is σ = 15232568. Its totient is φ = 7616280.

The previous prime is 11424389. The next prime is 11424433. The reversal of 11424423 is 32442411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32442411 = 3 ⋅10814137.

It is not a de Polignac number, because 11424423 - 2⁹ = 11423911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11424423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11424433) 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 in 3 ways as a sum of consecutive naturals, for example, 1904068 + ... + 1904073.

It is an arithmetic number, because the mean of its divisors is an integer number (3808142).

Almost surely, 2^11424423 is an apocalyptic number.

11424423 is a deficient number, since it is larger than the sum of its proper divisors (3808145).

11424423 is an equidigital number, since it uses as much as digits as its factorization.

11424423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808144.

The product of its digits is 768, while the sum is 21.

The square root of 11424423 is about 3380.0034023652. The cubic root of 11424423 is about 225.2223185302. Note that the first 3 decimals are identical.

Adding to 11424423 its reverse (32442411), we get a palindrome (43866834).

It can be divided in two parts, 1142 and 4423, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 11424423 in words is "eleven million, four hundred twenty-four thousand, four hundred twenty-three".