19428043 has 2 divisors, whose sum is σ = 19428044. Its totient is φ = 19428042.

The previous prime is 19428037. The next prime is 19428047. The reversal of 19428043 is 34082491.

It is a strong prime.

It is an emirp because it is prime and its reverse (34082491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19428043 - 2⁵ = 19428011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19427996 and 19428014.

It is not a weakly prime, because it can be changed into another prime (19428047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9714021 + 9714022.

It is an arithmetic number, because the mean of its divisors is an integer number (9714022).

Almost surely, 2^19428043 is an apocalyptic number.

19428043 is a deficient number, since it is larger than the sum of its proper divisors (1).

19428043 is an equidigital number, since it uses as much as digits as its factorization.

19428043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 19428043 is about 4407.7253771078. The cubic root of 19428043 is about 268.8291457540.

The spelling of 19428043 in words is "nineteen million, four hundred twenty-eight thousand, forty-three".