19448122 has 4 divisors (see below), whose sum is σ = 29172186. Its totient is φ = 9724060.

The previous prime is 19448113. The next prime is 19448123. The reversal of 19448122 is 22184491.

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

It can be written as a sum of positive squares in only one way, i.e., 18757561 + 690561 = 4331^2 + 831^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (19448123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4862029 + ... + 4862032.

Almost surely, 2^19448122 is an apocalyptic number.

19448122 is a deficient number, since it is larger than the sum of its proper divisors (9724064).

19448122 is an equidigital number, since it uses as much as digits as its factorization.

19448122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9724063.

The product of its digits is 4608, while the sum is 31.

The square root of 19448122 is about 4410.0024943304. The cubic root of 19448122 is about 268.9217260501.

The spelling of 19448122 in words is "nineteen million, four hundred forty-eight thousand, one hundred twenty-two".