22341621 has 16 divisors (see below), whose sum is σ = 31838400. Its totient is φ = 13886208.

The previous prime is 22341593. The next prime is 22341637. The reversal of 22341621 is 12614322.

It is not a de Polignac number, because 22341621 - 2¹⁹ = 21817333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22341661) 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, 3550 + ... + 7568.

It is an arithmetic number, because the mean of its divisors is an integer number (1989900).

Almost surely, 2^22341621 is an apocalyptic number.

It is an amenable number.

22341621 is a deficient number, since it is larger than the sum of its proper divisors (9496779).

22341621 is a wasteful number, since it uses less digits than its factorization.

22341621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148.

The product of its digits is 576, while the sum is 21.

The square root of 22341621 is about 4726.6923953225. The cubic root of 22341621 is about 281.6468467939.

Adding to 22341621 its reverse (12614322), we get a palindrome (34955943).

The spelling of 22341621 in words is "twenty-two million, three hundred forty-one thousand, six hundred twenty-one".