22138241 has 8 divisors (see below), whose sum is σ = 22417824. Its totient is φ = 21860640.

The previous prime is 22138229. The next prime is 22138243. The reversal of 22138241 is 14283122.

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 not a de Polignac number, because 22138241 - 2¹⁴ = 22121857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22138243) 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, 38486 + ... + 39056.

It is an arithmetic number, because the mean of its divisors is an integer number (2802228).

Almost surely, 2^22138241 is an apocalyptic number.

It is an amenable number.

22138241 is a deficient number, since it is larger than the sum of its proper divisors (279583).

22138241 is a wasteful number, since it uses less digits than its factorization.

22138241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its digits is 768, while the sum is 23.

The square root of 22138241 is about 4705.1292224550. The cubic root of 22138241 is about 280.7896121527.

The spelling of 22138241 in words is "twenty-two million, one hundred thirty-eight thousand, two hundred forty-one".