20738049 has 4 divisors (see below), whose sum is σ = 27650736. Its totient is φ = 13825364.

The previous prime is 20738033. The next prime is 20738051. The reversal of 20738049 is 94083702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20738049 - 2⁴ = 20738033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20738749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3456339 + ... + 3456344.

It is an arithmetic number, because the mean of its divisors is an integer number (6912684).

Almost surely, 2^20738049 is an apocalyptic number.

It is an amenable number.

20738049 is a deficient number, since it is larger than the sum of its proper divisors (6912687).

20738049 is an equidigital number, since it uses as much as digits as its factorization.

20738049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912686.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 20738049 is about 4553.9048079643. The cubic root of 20738049 is about 274.7404669868.

The spelling of 20738049 in words is "twenty million, seven hundred thirty-eight thousand, forty-nine".