19228285441 has 4 divisors (see below), whose sum is σ = 19232223300. Its totient is φ = 19224347584.

The previous prime is 19228285409. The next prime is 19228285477. The reversal of 19228285441 is 14458282291.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14458282291 = 5897 ⋅2451803.

It can be written as a sum of positive squares in 2 ways, for example, as 10512195841 + 8716089600 = 102529^2 + 93360^2 .

It is a cyclic number.

It is not a de Polignac number, because 19228285441 - 2⁵ = 19228285409 is a prime.

It is a super-2 number, since 2×19228285441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19228285391 and 19228285400.

It is not an unprimeable number, because it can be changed into a prime (19228285481) 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 3 ways as a sum of consecutive naturals, for example, 1961596 + ... + 1971373.

It is an arithmetic number, because the mean of its divisors is an integer number (4808055825).

Almost surely, 2^19228285441 is an apocalyptic number.

It is an amenable number.

19228285441 is a deficient number, since it is larger than the sum of its proper divisors (3937859).

19228285441 is an equidigital number, since it uses as much as digits as its factorization.

19228285441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937858.

The product of its digits is 368640, while the sum is 46.

The spelling of 19228285441 in words is "nineteen billion, two hundred twenty-eight million, two hundred eighty-five thousand, four hundred forty-one".