1444443142 has 16 divisors (see below), whose sum is σ = 2176828992. Its totient is φ = 718842280.

The previous prime is 1444443139. The next prime is 1444443149. The reversal of 1444443142 is 2413444441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444443149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412017 + ... + 415507.

It is an arithmetic number, because the mean of its divisors is an integer number (136051812).

Almost surely, 2^1444443142 is an apocalyptic number.

1444443142 is a deficient number, since it is larger than the sum of its proper divisors (732385850).

1444443142 is a wasteful number, since it uses less digits than its factorization.

1444443142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403.

The product of its digits is 24576, while the sum is 31.

The square root of 1444443142 is about 38005.8303685106. The cubic root of 1444443142 is about 1130.4034745791.

Adding to 1444443142 its reverse (2413444441), we get a palindrome (3857887583).

The spelling of 1444443142 in words is "one billion, four hundred forty-four million, four hundred forty-three thousand, one hundred forty-two".