1444342223 has 4 divisors (see below), whose sum is σ = 1444650480. Its totient is φ = 1444033968.

The previous prime is 1444342183. The next prime is 1444342231. The reversal of 1444342223 is 3222434441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222434441 = 29 ⋅111118429.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444342223 is a prime.

It is a super-2 number, since 2×1444342223² = 4172248914281163458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444312223) 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, 146990 + ... + 156507.

It is an arithmetic number, because the mean of its divisors is an integer number (361162620).

Almost surely, 2^1444342223 is an apocalyptic number.

1444342223 is a deficient number, since it is larger than the sum of its proper divisors (308257).

1444342223 is an equidigital number, since it uses as much as digits as its factorization.

1444342223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308256.

The product of its digits is 18432, while the sum is 29.

The square root of 1444342223 is about 38004.5026674472. The cubic root of 1444342223 is about 1130.3771479758.

Adding to 1444342223 its reverse (3222434441), we get a palindrome (4666776664).

The spelling of 1444342223 in words is "one billion, four hundred forty-four million, three hundred forty-two thousand, two hundred twenty-three".