20189241 has 12 divisors (see below), whose sum is σ = 29261232. Its totient is φ = 13413816.

The previous prime is 20189233. The next prime is 20189291. The reversal of 20189241 is 14298102.

It is not a de Polignac number, because 20189241 - 2³ = 20189233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20189291) 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, 891 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (2438436).

Almost surely, 2^20189241 is an apocalyptic number.

It is an amenable number.

20189241 is a deficient number, since it is larger than the sum of its proper divisors (9071991).

20189241 is a wasteful number, since it uses less digits than its factorization.

20189241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620 (or 7617 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 20189241 is about 4493.2439283885. The cubic root of 20189241 is about 272.2952073512.

The spelling of 20189241 in words is "twenty million, one hundred eighty-nine thousand, two hundred forty-one".