11423438 has 16 divisors (see below), whose sum is σ = 19049856. Its totient is φ = 5101920.

The previous prime is 11423431. The next prime is 11423441. The reversal of 11423438 is 83432411.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6281 + ... + 7892.

It is an arithmetic number, because the mean of its divisors is an integer number (1190616).

Almost surely, 2^11423438 is an apocalyptic number.

11423438 is a deficient number, since it is larger than the sum of its proper divisors (7626418).

11423438 is a wasteful number, since it uses less digits than its factorization.

11423438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14219.

The product of its digits is 2304, while the sum is 26.

The square root of 11423438 is about 3379.8576893118. The cubic root of 11423438 is about 225.2158455451.

Adding to 11423438 its reverse (83432411), we get a palindrome (94855849).

The spelling of 11423438 in words is "eleven million, four hundred twenty-three thousand, four hundred thirty-eight".