1444223231 has 8 divisors (see below), whose sum is σ = 1658438400. Its totient is φ = 1243828440.

The previous prime is 1444223213. The next prime is 1444223267. The reversal of 1444223231 is 1323224441.

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

It is a cyclic number.

It is not a de Polignac number, because 1444223231 - 2¹⁴ = 1444206847 is a prime.

It is a super-2 number, since 2×1444223231² = 4171561481920158722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444223231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444223531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3454871 + ... + 3455288.

It is an arithmetic number, because the mean of its divisors is an integer number (207304800).

Almost surely, 2^1444223231 is an apocalyptic number.

1444223231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1444223231 is a deficient number, since it is larger than the sum of its proper divisors (214215169).

1444223231 is a wasteful number, since it uses less digits than its factorization.

1444223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6910189.

The product of its digits is 4608, while the sum is 26.

The square root of 1444223231 is about 38002.9371364899. The cubic root of 1444223231 is about 1130.3461051178.

Adding to 1444223231 its reverse (1323224441), we get a palindrome (2767447672).

It can be divided in two parts, 14442 and 23231, that added together give a palindrome (37673).

The spelling of 1444223231 in words is "one billion, four hundred forty-four million, two hundred twenty-three thousand, two hundred thirty-one".