20326349 has 2 divisors, whose sum is σ = 20326350. Its totient is φ = 20326348.

The previous prime is 20326343. The next prime is 20326363. The reversal of 20326349 is 94362302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16144324 + 4182025 = 4018^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 20326349 - 2¹⁶ = 20260813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20326343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10163174 + 10163175.

It is an arithmetic number, because the mean of its divisors is an integer number (10163175).

Almost surely, 2^20326349 is an apocalyptic number.

It is an amenable number.

20326349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20326349 is an equidigital number, since it uses as much as digits as its factorization.

20326349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 20326349 is about 4508.4752411431. The cubic root of 20326349 is about 272.9102157039.

The spelling of 20326349 in words is "twenty million, three hundred twenty-six thousand, three hundred forty-nine".