20224169 has 8 divisors (see below), whose sum is σ = 24473088. Its totient is φ = 16315200.

The previous prime is 20224159. The next prime is 20224207. The reversal of 20224169 is 96142202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20224169 - 2⁸ = 20223913 is a prime.

It is a super-2 number, since 2×20224169² = 818034023481122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20224129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84857 + ... + 85094.

It is an arithmetic number, because the mean of its divisors is an integer number (3059136).

Almost surely, 2^20224169 is an apocalyptic number.

It is an amenable number.

20224169 is a deficient number, since it is larger than the sum of its proper divisors (4248919).

20224169 is a wasteful number, since it uses less digits than its factorization.

20224169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169975.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20224169 is about 4497.1289730227. The cubic root of 20224169 is about 272.4521432104.

The spelling of 20224169 in words is "twenty million, two hundred twenty-four thousand, one hundred sixty-nine".