22144473 has 24 divisors (see below), whose sum is σ = 35188608. Its totient is φ = 13334112.

The previous prime is 22144471. The next prime is 22144511. The reversal of 22144473 is 37444122.

22144473 is a `hidden beast` number, since 2 + 214 + 447 + 3 = 666.

It is not a de Polignac number, because 22144473 - 2¹ = 22144471 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22144471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3486 + ... + 7512.

It is an arithmetic number, because the mean of its divisors is an integer number (1466192).

Almost surely, 2^22144473 is an apocalyptic number.

It is an amenable number.

22144473 is a deficient number, since it is larger than the sum of its proper divisors (13044135).

22144473 is a wasteful number, since it uses less digits than its factorization.

22144473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093 (or 4090 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 22144473 is about 4705.7914318423. The cubic root of 22144473 is about 280.8159574660.

Adding to 22144473 its reverse (37444122), we get a palindrome (59588595).

The spelling of 22144473 in words is "twenty-two million, one hundred forty-four thousand, four hundred seventy-three".