22841621 has 8 divisors (see below), whose sum is σ = 24957504. Its totient is φ = 20732320.

The previous prime is 22841593. The next prime is 22841639. The reversal of 22841621 is 12614822.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22841621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22841521) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8216 + ... + 10638.

It is an arithmetic number, because the mean of its divisors is an integer number (3119688).

Almost surely, 2^22841621 is an apocalyptic number.

It is an amenable number.

22841621 is a deficient number, since it is larger than the sum of its proper divisors (2115883).

22841621 is a wasteful number, since it uses less digits than its factorization.

22841621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291.

The product of its digits is 1536, while the sum is 26.

The square root of 22841621 is about 4779.2908469772. The cubic root of 22841621 is about 283.7324275118.

The spelling of 22841621 in words is "twenty-two million, eight hundred forty-one thousand, six hundred twenty-one".