22442621 has 8 divisors (see below), whose sum is σ = 23077824. Its totient is φ = 21811680.

The previous prime is 22442573. The next prime is 22442633. The reversal of 22442621 is 12624422.

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

It is a cyclic number.

It is not a de Polignac number, because 22442621 - 2²² = 18248317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22472621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11696 + ... + 13478.

It is an arithmetic number, because the mean of its divisors is an integer number (2884728).

Almost surely, 2^22442621 is an apocalyptic number.

It is an amenable number.

22442621 is a deficient number, since it is larger than the sum of its proper divisors (635203).

22442621 is a wasteful number, since it uses less digits than its factorization.

22442621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its digits is 1536, while the sum is 23.

The square root of 22442621 is about 4737.3643516200. The cubic root of 22442621 is about 282.0706234599.

The spelling of 22442621 in words is "twenty-two million, four hundred forty-two thousand, six hundred twenty-one".