19414189 has 4 divisors (see below), whose sum is σ = 19447200. Its totient is φ = 19381180.

The previous prime is 19414183. The next prime is 19414201. The reversal of 19414189 is 98141491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98141491 = 7 ⋅14020213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19414189 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 (19414183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15607 + ... + 16804.

It is an arithmetic number, because the mean of its divisors is an integer number (4861800).

Almost surely, 2^19414189 is an apocalyptic number.

It is an amenable number.

19414189 is a deficient number, since it is larger than the sum of its proper divisors (33011).

19414189 is an equidigital number, since it uses as much as digits as its factorization.

19414189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33010.

The product of its digits is 10368, while the sum is 37.

The square root of 19414189 is about 4406.1535379512. The cubic root of 19414189 is about 268.7652305052.

The spelling of 19414189 in words is "nineteen million, four hundred fourteen thousand, one hundred eighty-nine".