22865229 has 6 divisors (see below), whose sum is σ = 33027566. Its totient is φ = 15243480.

The previous prime is 22865203. The next prime is 22865231. The reversal of 22865229 is 92256822.

It can be written as a sum of positive squares in only one way, i.e., 12638025 + 10227204 = 3555^2 + 3198^2 .

It is not a de Polignac number, because 22865229 - 2⁸ = 22864973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22865193 and 22865202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22865239) 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, 1270282 + ... + 1270299.

Almost surely, 2^22865229 is an apocalyptic number.

It is an amenable number.

22865229 is a deficient number, since it is larger than the sum of its proper divisors (10162337).

22865229 is a wasteful number, since it uses less digits than its factorization.

22865229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540587 (or 2540584 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 22865229 is about 4781.7600316202. The cubic root of 22865229 is about 283.8301445810.

The spelling of 22865229 in words is "twenty-two million, eight hundred sixty-five thousand, two hundred twenty-nine".