20468741 has 2 divisors, whose sum is σ = 20468742. Its totient is φ = 20468740.

The previous prime is 20468737. The next prime is 20468753. The reversal of 20468741 is 14786402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12180100 + 8288641 = 3490^2 + 2879^2 .

It is a cyclic number.

It is not a de Polignac number, because 20468741 - 2² = 20468737 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20468698 and 20468707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20468771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10234370 + 10234371.

It is an arithmetic number, because the mean of its divisors is an integer number (10234371).

Almost surely, 2^20468741 is an apocalyptic number.

It is an amenable number.

20468741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20468741 is an equidigital number, since it uses as much as digits as its factorization.

20468741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 20468741 is about 4524.2392730712. The cubic root of 20468741 is about 273.5460052486.

The spelling of 20468741 in words is "twenty million, four hundred sixty-eight thousand, seven hundred forty-one".