11431422 has 16 divisors (see below), whose sum is σ = 25403280. Its totient is φ = 3810456.

The previous prime is 11431403. The next prime is 11431447. The reversal of 11431422 is 22413411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11431395 and 11431404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105793 + ... + 105900.

It is an arithmetic number, because the mean of its divisors is an integer number (1587705).

Almost surely, 2^11431422 is an apocalyptic number.

11431422 is an abundant number, since it is smaller than the sum of its proper divisors (13971858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11431422 is a wasteful number, since it uses less digits than its factorization.

11431422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211704 (or 211698 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 11431422 is about 3381.0385978276. The cubic root of 11431422 is about 225.2683021571.

Adding to 11431422 its reverse (22413411), we get a palindrome (33844833).

The spelling of 11431422 in words is "eleven million, four hundred thirty-one thousand, four hundred twenty-two".