1442144323 has 4 divisors (see below), whose sum is σ = 1526976360. Its totient is φ = 1357312288.

The previous prime is 1442144317. The next prime is 1442144351. The reversal of 1442144323 is 3234412441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442144323 is a prime.

It is a super-2 number, since 2×1442144323² = 4159560496722256658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442144291 and 1442144300.

It is not an unprimeable number, because it can be changed into a prime (1442144923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42415993 + ... + 42416026.

It is an arithmetic number, because the mean of its divisors is an integer number (381744090).

Almost surely, 2^1442144323 is an apocalyptic number.

1442144323 is a deficient number, since it is larger than the sum of its proper divisors (84832037).

1442144323 is an equidigital number, since it uses as much as digits as its factorization.

1442144323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84832036.

The product of its digits is 9216, while the sum is 28.

The square root of 1442144323 is about 37975.5753478469. The cubic root of 1442144323 is about 1129.8034803263.

Adding to 1442144323 its reverse (3234412441), we get a palindrome (4676556764).

The spelling of 1442144323 in words is "one billion, four hundred forty-two million, one hundred forty-four thousand, three hundred twenty-three".