20498941 has 2 divisors, whose sum is σ = 20498942. Its totient is φ = 20498940.

The previous prime is 20498927. The next prime is 20498971. The reversal of 20498941 is 14989402.

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., 12630916 + 7868025 = 3554^2 + 2805^2 .

It is a cyclic number.

It is not a de Polignac number, because 20498941 - 2⁷ = 20498813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20498941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20498921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10249470 + 10249471.

It is an arithmetic number, because the mean of its divisors is an integer number (10249471).

Almost surely, 2^20498941 is an apocalyptic number.

It is an amenable number.

20498941 is a deficient number, since it is larger than the sum of its proper divisors (1).

20498941 is an equidigital number, since it uses as much as digits as its factorization.

20498941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 20498941 is about 4527.5756205722. The cubic root of 20498941 is about 273.6804709334.

The spelling of 20498941 in words is "twenty million, four hundred ninety-eight thousand, nine hundred forty-one".