22838221 has 8 divisors (see below), whose sum is σ = 26360064. Its totient is φ = 19381200.

The previous prime is 22838183. The next prime is 22838261. The reversal of 22838221 is 12283822.

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 22838221 - 2²¹ = 20741069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22838221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22838261) 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, 15445 + ... + 16858.

It is an arithmetic number, because the mean of its divisors is an integer number (3295008).

Almost surely, 2^22838221 is an apocalyptic number.

It is an amenable number.

22838221 is a deficient number, since it is larger than the sum of its proper divisors (3521843).

22838221 is a wasteful number, since it uses less digits than its factorization.

22838221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32411.

The product of its digits is 3072, while the sum is 28.

The square root of 22838221 is about 4778.9351324327. The cubic root of 22838221 is about 283.7183488537.

The spelling of 22838221 in words is "twenty-two million, eight hundred thirty-eight thousand, two hundred twenty-one".