19480939 has 2 divisors, whose sum is σ = 19480940. Its totient is φ = 19480938.

The previous prime is 19480921. The next prime is 19480969. The reversal of 19480939 is 93908491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19480939 - 2⁹ = 19480427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19480895 and 19480904.

It is not a weakly prime, because it can be changed into another prime (19480919) 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, 9740469 + 9740470.

It is an arithmetic number, because the mean of its divisors is an integer number (9740470).

Almost surely, 2^19480939 is an apocalyptic number.

19480939 is a deficient number, since it is larger than the sum of its proper divisors (1).

19480939 is an equidigital number, since it uses as much as digits as its factorization.

19480939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 19480939 is about 4413.7216722399. The cubic root of 19480939 is about 269.0729016583.

The spelling of 19480939 in words is "nineteen million, four hundred eighty thousand, nine hundred thirty-nine".