22919229 has 6 divisors (see below), whose sum is σ = 33105566. Its totient is φ = 15279480.

The previous prime is 22919227. The next prime is 22919269. The reversal of 22919229 is 92291922.

It can be written as a sum of positive squares in only one way, i.e., 16793604 + 6125625 = 4098^2 + 2475^2 .

It is not a de Polignac number, because 22919229 - 2¹ = 22919227 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22919193 and 22919202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22919227) 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, 1273282 + ... + 1273299.

Almost surely, 2^22919229 is an apocalyptic number.

It is an amenable number.

22919229 is a deficient number, since it is larger than the sum of its proper divisors (10186337).

22919229 is a wasteful number, since it uses less digits than its factorization.

22919229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546587 (or 2546584 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 22919229 is about 4787.4031582895. The cubic root of 22919229 is about 284.0534061106.

The spelling of 22919229 in words is "twenty-two million, nine hundred nineteen thousand, two hundred twenty-nine".