22321422 has 24 divisors (see below), whose sum is σ = 48452976. Its totient is φ = 7426656.

The previous prime is 22321421. The next prime is 22321423. The reversal of 22321422 is 22412322.

22321422 is a `hidden beast` number, since 223 + 21 + 422 = 666.

It is an interprime number because it is at equal distance from previous prime (22321421) and next prime (22321423).

It is a super-3 number, since 3×22321422³ (a number of 23 digits) contains 333 as substring.

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 = 22321395 and 22321404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14703 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (2018874).

Almost surely, 2^22321422 is an apocalyptic number.

22321422 is an abundant number, since it is smaller than the sum of its proper divisors (26131554).

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

22321422 is a wasteful number, since it uses less digits than its factorization.

22321422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312 (or 2309 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 22321422 is about 4724.5552171607. Note that the first 3 decimals coincide. The cubic root of 22321422 is about 281.5619424803.

Adding to 22321422 its reverse (22412322), we get a palindrome (44733744).

The spelling of 22321422 in words is "twenty-two million, three hundred twenty-one thousand, four hundred twenty-two".