22134447 has 6 divisors (see below), whose sum is σ = 31971992. Its totient is φ = 14756292.

The previous prime is 22134439. The next prime is 22134451. The reversal of 22134447 is 74443122.

22134447 is a `hidden beast` number, since 2 + 213 + 4 + 447 = 666.

It is not a de Polignac number, because 22134447 - 2³ = 22134439 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 22134447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22134407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1229683 + ... + 1229700.

Almost surely, 2^22134447 is an apocalyptic number.

22134447 is a deficient number, since it is larger than the sum of its proper divisors (9837545).

22134447 is a wasteful number, since it uses less digits than its factorization.

22134447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459389 (or 2459386 counting only the distinct ones).

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

The square root of 22134447 is about 4704.7260281551. The cubic root of 22134447 is about 280.7735708805.

Adding to 22134447 its reverse (74443122), we get a palindrome (96577569).

The spelling of 22134447 in words is "twenty-two million, one hundred thirty-four thousand, four hundred forty-seven".