19444234 has 4 divisors (see below), whose sum is σ = 29166354. Its totient is φ = 9722116.

The previous prime is 19444219. The next prime is 19444259. The reversal of 19444234 is 43244491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43244491 = 199 ⋅217309.

It can be written as a sum of positive squares in only one way, i.e., 14085009 + 5359225 = 3753^2 + 2315^2 .

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 a junction number, because it is equal to n+sod(n) for n = 19444196 and 19444205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4861057 + ... + 4861060.

Almost surely, 2^19444234 is an apocalyptic number.

19444234 is a deficient number, since it is larger than the sum of its proper divisors (9722120).

19444234 is an equidigital number, since it uses as much as digits as its factorization.

19444234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9722119.

The product of its digits is 13824, while the sum is 31.

The square root of 19444234 is about 4409.5616562194. The cubic root of 19444234 is about 268.9038042279.

The spelling of 19444234 in words is "nineteen million, four hundred forty-four thousand, two hundred thirty-four".