22022424 has 24 divisors (see below), whose sum is σ = 59644260. Its totient is φ = 7340784.

The previous prime is 22022417. The next prime is 22022447. The reversal of 22022424 is 42422022.

22022424 is a `hidden beast` number, since 220 + 22 + 424 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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 = 22022397 and 22022406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152862 + ... + 153005.

Almost surely, 2^22022424 is an apocalyptic number.

22022424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22022424 is an abundant number, since it is smaller than the sum of its proper divisors (37621836).

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

22022424 is a wasteful number, since it uses less digits than its factorization.

22022424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305879 (or 305872 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 22022424 is about 4692.8055574464. The cubic root of 22022424 is about 280.2991021475.

Adding to 22022424 its reverse (42422022), we get a palindrome (64444446).

The spelling of 22022424 in words is "twenty-two million, twenty-two thousand, four hundred twenty-four".