22438541 has 4 divisors (see below), whose sum is σ = 22454112. Its totient is φ = 22422972.

The previous prime is 22438511. The next prime is 22438553. The reversal of 22438541 is 14583422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22438541 - 2¹⁰ = 22437517 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 (22438511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5375 + ... + 8588.

It is an arithmetic number, because the mean of its divisors is an integer number (5613528).

Almost surely, 2^22438541 is an apocalyptic number.

It is an amenable number.

22438541 is a deficient number, since it is larger than the sum of its proper divisors (15571).

22438541 is a wasteful number, since it uses less digits than its factorization.

22438541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15570.

The product of its digits is 7680, while the sum is 29.

The square root of 22438541 is about 4736.9337128569. The cubic root of 22438541 is about 282.0535292312.

The spelling of 22438541 in words is "twenty-two million, four hundred thirty-eight thousand, five hundred forty-one".