20301849 has 6 divisors (see below), whose sum is σ = 29324906. Its totient is φ = 13534560.

The previous prime is 20301829. The next prime is 20301857. The reversal of 20301849 is 94810302.

It can be written as a sum of positive squares in only one way, i.e., 20115225 + 186624 = 4485^2 + 432^2 .

It is not a de Polignac number, because 20301849 - 2⁵ = 20301817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20301829) 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 5 ways as a sum of consecutive naturals, for example, 1127872 + ... + 1127889.

Almost surely, 2^20301849 is an apocalyptic number.

It is an amenable number.

20301849 is a deficient number, since it is larger than the sum of its proper divisors (9023057).

20301849 is a wasteful number, since it uses less digits than its factorization.

20301849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255767 (or 2255764 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20301849 is about 4505.7573170334. The cubic root of 20301849 is about 272.8005224762.

The spelling of 20301849 in words is "twenty million, three hundred one thousand, eight hundred forty-nine".