20446193 has 2 divisors, whose sum is σ = 20446194. Its totient is φ = 20446192.

The previous prime is 20446177. The next prime is 20446213. The reversal of 20446193 is 39164402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18421264 + 2024929 = 4292^2 + 1423^2 .

It is a cyclic number.

It is not a de Polignac number, because 20446193 - 2⁴ = 20446177 is a prime.

It is not a weakly prime, because it can be changed into another prime (20446123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10223096 + 10223097.

It is an arithmetic number, because the mean of its divisors is an integer number (10223097).

Almost surely, 2^20446193 is an apocalyptic number.

It is an amenable number.

20446193 is a deficient number, since it is larger than the sum of its proper divisors (1).

20446193 is an equidigital number, since it uses as much as digits as its factorization.

20446193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 20446193 is about 4521.7466757880. The cubic root of 20446193 is about 273.4455238767.

The spelling of 20446193 in words is "twenty million, four hundred forty-six thousand, one hundred ninety-three".