20350449 has 24 divisors (see below), whose sum is σ = 33733440. Its totient is φ = 11580768.

The previous prime is 20350439. The next prime is 20350471. The reversal of 20350449 is 94405302.

It is not a de Polignac number, because 20350449 - 2⁴ = 20350433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20350439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19462 + ... + 20480.

It is an arithmetic number, because the mean of its divisors is an integer number (1405560).

Almost surely, 2^20350449 is an apocalyptic number.

It is an amenable number.

20350449 is a deficient number, since it is larger than the sum of its proper divisors (13382991).

20350449 is a wasteful number, since it uses less digits than its factorization.

20350449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20350449 is about 4511.1471933423. The cubic root of 20350449 is about 273.0180320577.

The spelling of 20350449 in words is "twenty million, three hundred fifty thousand, four hundred forty-nine".