20499341 has 2 divisors, whose sum is σ = 20499342. Its totient is φ = 20499340.

The previous prime is 20499337. The next prime is 20499359. The reversal of 20499341 is 14399402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20475625 + 23716 = 4525^2 + 154^2 .

It is a cyclic number.

It is not a de Polignac number, because 20499341 - 2² = 20499337 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20499298 and 20499307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20499361) 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 as a sum of consecutive naturals, namely, 10249670 + 10249671.

It is an arithmetic number, because the mean of its divisors is an integer number (10249671).

Almost surely, 2^20499341 is an apocalyptic number.

It is an amenable number.

20499341 is a deficient number, since it is larger than the sum of its proper divisors (1).

20499341 is an equidigital number, since it uses as much as digits as its factorization.

20499341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 20499341 is about 4527.6197941082. The cubic root of 20499341 is about 273.6822510494.

The spelling of 20499341 in words is "twenty million, four hundred ninety-nine thousand, three hundred forty-one".