19340039 has 2 divisors, whose sum is σ = 19340040. Its totient is φ = 19340038.

The previous prime is 19340029. The next prime is 19340047. The reversal of 19340039 is 93004391.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19340039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19339993 and 19340020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19340029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9670019 + 9670020.

It is an arithmetic number, because the mean of its divisors is an integer number (9670020).

Almost surely, 2^19340039 is an apocalyptic number.

19340039 is a deficient number, since it is larger than the sum of its proper divisors (1).

19340039 is an equidigital number, since it uses as much as digits as its factorization.

19340039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 19340039 is about 4397.7311195661. The cubic root of 19340039 is about 268.4226225321.

The spelling of 19340039 in words is "nineteen million, three hundred forty thousand, thirty-nine".