19412005 has 4 divisors (see below), whose sum is σ = 23294412. Its totient is φ = 15529600.

The previous prime is 19411999. The next prime is 19412021. The reversal of 19412005 is 50021491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11716929 + 7695076 = 3423^2 + 2774^2 .

It is a de Polignac number, because none of the positive numbers 2^k-19412005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941196 + ... + 1941205.

It is an arithmetic number, because the mean of its divisors is an integer number (5823603).

Almost surely, 2^19412005 is an apocalyptic number.

It is an amenable number.

19412005 is a deficient number, since it is larger than the sum of its proper divisors (3882407).

19412005 is an equidigital number, since it uses as much as digits as its factorization.

19412005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882406.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 19412005 is about 4405.9056957679. The cubic root of 19412005 is about 268.7551518753.

Adding to 19412005 its reverse (50021491), we get a palindrome (69433496).

The spelling of 19412005 in words is "nineteen million, four hundred twelve thousand, five".