22361424 has 40 divisors (see below), whose sum is σ = 58508160. Its totient is φ = 7358208.

The previous prime is 22361399. The next prime is 22361453. The reversal of 22361424 is 42416322.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22361394 and 22361403.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 844 + ... + 6740.

It is an arithmetic number, because the mean of its divisors is an integer number (1462704).

Almost surely, 2^22361424 is an apocalyptic number.

22361424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

22361424 is the 2528-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22361424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29254080).

22361424 is an abundant number, since it is smaller than the sum of its proper divisors (36146736).

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

22361424 is a wasteful number, since it uses less digits than its factorization.

22361424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987 (or 5981 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 22361424 is about 4728.7867365742. The cubic root of 22361424 is about 281.7300368993.

Adding to 22361424 its reverse (42416322), we get a palindrome (64777746).

The spelling of 22361424 in words is "twenty-two million, three hundred sixty-one thousand, four hundred twenty-four".