1444320142 has 8 divisors (see below), whose sum is σ = 2171938536. Its totient is φ = 720340632.

The previous prime is 1444320113. The next prime is 1444320173. The reversal of 1444320142 is 2410234441.

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

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, 908728 + ... + 910315.

It is an arithmetic number, because the mean of its divisors is an integer number (271492317).

Almost surely, 2^1444320142 is an apocalyptic number.

1444320142 is a deficient number, since it is larger than the sum of its proper divisors (727618394).

1444320142 is a wasteful number, since it uses less digits than its factorization.

1444320142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819442.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1444320142 is about 38004.2121612855. The cubic root of 1444320142 is about 1130.3713875716.

Adding to 1444320142 its reverse (2410234441), we get a palindrome (3854554583).

The spelling of 1444320142 in words is "one billion, four hundred forty-four million, three hundred twenty thousand, one hundred forty-two".