19425079 has 6 divisors (see below), whose sum is σ = 19626216. Its totient is φ = 19225980.

The previous prime is 19425059. The next prime is 19425089. The reversal of 19425079 is 97052491.

It is not a de Polignac number, because 19425079 - 2⁵ = 19425047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19425019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9694 + ... + 11524.

It is an arithmetic number, because the mean of its divisors is an integer number (3271036).

Almost surely, 2^19425079 is an apocalyptic number.

19425079 is a deficient number, since it is larger than the sum of its proper divisors (201137).

19425079 is an equidigital number, since it uses as much as digits as its factorization.

19425079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 19425079 is about 4407.3891364389. The cubic root of 19425079 is about 268.8154739341.

It can be divided in two parts, 1942 and 5079, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 19425079 in words is "nineteen million, four hundred twenty-five thousand, seventy-nine".