19440341 has 2 divisors, whose sum is σ = 19440342. Its totient is φ = 19440340.

The previous prime is 19440329. The next prime is 19440349. The reversal of 19440341 is 14304491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18957316 + 483025 = 4354^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 19440341 - 2⁶ = 19440277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19440341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19440349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9720170 + 9720171.

It is an arithmetic number, because the mean of its divisors is an integer number (9720171).

Almost surely, 2^19440341 is an apocalyptic number.

It is an amenable number.

19440341 is a deficient number, since it is larger than the sum of its proper divisors (1).

19440341 is an equidigital number, since it uses as much as digits as its factorization.

19440341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 19440341 is about 4409.1202070254. The cubic root of 19440341 is about 268.8858569643.

The spelling of 19440341 in words is "nineteen million, four hundred forty thousand, three hundred forty-one".