22543454 has 8 divisors (see below), whose sum is σ = 33883920. Its totient is φ = 11248816.

The previous prime is 22543453. The next prime is 22543463. The reversal of 22543454 is 45434522.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22543453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10199 + ... + 12210.

It is an arithmetic number, because the mean of its divisors is an integer number (4235490).

Almost surely, 2^22543454 is an apocalyptic number.

22543454 is a deficient number, since it is larger than the sum of its proper divisors (11340466).

22543454 is a wasteful number, since it uses less digits than its factorization.

22543454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22914.

The product of its digits is 19200, while the sum is 29.

The square root of 22543454 is about 4747.9947346222. The cubic root of 22543454 is about 282.4924330341.

Adding to 22543454 its reverse (45434522), we get a palindrome (67977976).

The spelling of 22543454 in words is "twenty-two million, five hundred forty-three thousand, four hundred fifty-four".