22003622 has 8 divisors (see below), whose sum is σ = 33067416. Its totient is φ = 10981152.

The previous prime is 22003613. The next prime is 22003649. The reversal of 22003622 is 22630022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22003622² = 968318762237768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22003622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8963 + ... + 11150.

It is an arithmetic number, because the mean of its divisors is an integer number (4133427).

Almost surely, 2^22003622 is an apocalyptic number.

22003622 is a deficient number, since it is larger than the sum of its proper divisors (11063794).

22003622 is a wasteful number, since it uses less digits than its factorization.

22003622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20662.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22003622 is about 4690.8018504303. The cubic root of 22003622 is about 280.2193094739.

Adding to 22003622 its reverse (22630022), we get a palindrome (44633644).

The spelling of 22003622 in words is "twenty-two million, three thousand, six hundred twenty-two".