20386049 has 2 divisors, whose sum is σ = 20386050. Its totient is φ = 20386048.

The previous prime is 20386039. The next prime is 20386063. The reversal of 20386049 is 94068302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14592400 + 5793649 = 3820^2 + 2407^2 .

It is a cyclic number.

It is not a de Polignac number, because 20386049 - 2⁴ = 20386033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20386019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10193024 + 10193025.

It is an arithmetic number, because the mean of its divisors is an integer number (10193025).

Almost surely, 2^20386049 is an apocalyptic number.

It is an amenable number.

20386049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20386049 is an equidigital number, since it uses as much as digits as its factorization.

20386049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 20386049 is about 4515.0912504622. The cubic root of 20386049 is about 273.1771404208.

The spelling of 20386049 in words is "twenty million, three hundred eighty-six thousand, forty-nine".