22000422 has 32 divisors (see below), whose sum is σ = 45641952. Its totient is φ = 7064064.

The previous prime is 22000409. The next prime is 22000427. The reversal of 22000422 is 22400022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22000398 and 22000407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24648 + ... + 25524.

It is an arithmetic number, because the mean of its divisors is an integer number (1426311).

Almost surely, 2^22000422 is an apocalyptic number.

22000422 is an abundant number, since it is smaller than the sum of its proper divisors (23641530).

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

22000422 is a wasteful number, since it uses less digits than its factorization.

22000422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 22000422 is about 4690.4607449589. The cubic root of 22000422 is about 280.2057246610.

Adding to 22000422 its reverse (22400022), we get a palindrome (44400444).

It can be divided in two parts, 22000 and 422, that added together give a palindrome (22422).

The spelling of 22000422 in words is "twenty-two million, four hundred twenty-two", and thus it is an aban number.