1444438113 has 8 divisors (see below), whose sum is σ = 1944616128. Its totient is φ = 953609424.

The previous prime is 1444438109. The next prime is 1444438141. The reversal of 1444438113 is 3118344441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1444438113 - 2² = 1444438109 is a prime.

It is a super-3 number, since 3×1444438113³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1444438213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336970 + ... + 2337587.

It is an arithmetic number, because the mean of its divisors is an integer number (243077016).

Almost surely, 2^1444438113 is an apocalyptic number.

It is an amenable number.

1444438113 is a deficient number, since it is larger than the sum of its proper divisors (500178015).

1444438113 is a wasteful number, since it uses less digits than its factorization.

1444438113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674663.

The product of its digits is 18432, while the sum is 33.

The square root of 1444438113 is about 38005.7642075515. The cubic root of 1444438113 is about 1130.4021626997.

The spelling of 1444438113 in words is "one billion, four hundred forty-four million, four hundred thirty-eight thousand, one hundred thirteen".