20222469 has 12 divisors (see below), whose sum is σ = 30928716. Its totient is φ = 12688512.

The previous prime is 20222459. The next prime is 20222473. The reversal of 20222469 is 96422202.

It can be written as a sum of positive squares in 2 ways, for example, as 10692900 + 9529569 = 3270^2 + 3087^2 .

It is not a de Polignac number, because 20222469 - 2⁵ = 20222437 is a prime.

It is a super-2 number, since 2×20222469² = 817896504911922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65934 + ... + 66239.

It is an arithmetic number, because the mean of its divisors is an integer number (2577393).

Almost surely, 2^20222469 is an apocalyptic number.

It is an amenable number.

20222469 is a deficient number, since it is larger than the sum of its proper divisors (10706247).

20222469 is a wasteful number, since it uses less digits than its factorization.

20222469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132196 (or 132193 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20222469 is about 4496.9399595725. The cubic root of 20222469 is about 272.4445090835. Note that the first 3 decimals are identical.

The spelling of 20222469 in words is "twenty million, two hundred twenty-two thousand, four hundred sixty-nine".