22421626 has 4 divisors (see below), whose sum is σ = 33632442. Its totient is φ = 11210812.

The previous prime is 22421599. The next prime is 22421677. The reversal of 22421626 is 62612422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62612422 = 2 ⋅31306211.

It can be written as a sum of positive squares in only one way, i.e., 18481401 + 3940225 = 4299^2 + 1985^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22421626.

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 as a sum of consecutive naturals, namely, 5605405 + ... + 5605408.

Almost surely, 2^22421626 is an apocalyptic number.

22421626 is a deficient number, since it is larger than the sum of its proper divisors (11210816).

22421626 is a wasteful number, since it uses less digits than its factorization.

22421626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11210815.

The product of its digits is 2304, while the sum is 25.

The square root of 22421626 is about 4735.1479385548. The cubic root of 22421626 is about 281.9826372959.

The spelling of 22421626 in words is "twenty-two million, four hundred twenty-one thousand, six hundred twenty-six".