22143000424 has 8 divisors (see below), whose sum is σ = 41518125810. Its totient is φ = 11071500208.

The previous prime is 22143000413. The next prime is 22143000493. The reversal of 22143000424 is 42400034122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22136083524 + 6916900 = 148782^2 + 2630^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22143000395 and 22143000404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383937519 + ... + 1383937534.

Almost surely, 2^22143000424 is an apocalyptic number.

It is an amenable number.

22143000424 is a deficient number, since it is larger than the sum of its proper divisors (19375125386).

22143000424 is a wasteful number, since it uses less digits than its factorization.

22143000424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767875059 (or 2767875055 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22143000424 its reverse (42400034122), we get a palindrome (64543034546).

The spelling of 22143000424 in words is "twenty-two billion, one hundred forty-three million, four hundred twenty-four", and thus it is an aban number.