1444047445 has 4 divisors (see below), whose sum is σ = 1732856940. Its totient is φ = 1155237952.

The previous prime is 1444047421. The next prime is 1444047469. The reversal of 1444047445 is 5447404441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5447404441 = 24109 ⋅225949.

It is an interprime number because it is at equal distance from previous prime (1444047421) and next prime (1444047469).

It can be written as a sum of positive squares in 2 ways, for example, as 959078961 + 484968484 = 30969^2 + 22022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444047445 - 2²⁵ = 1410493013 is a prime.

It is a super-2 number, since 2×1444047445² = 4170546046822056050, which contains 22 as substring.

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, 144404740 + ... + 144404749.

It is an arithmetic number, because the mean of its divisors is an integer number (433214235).

Almost surely, 2^1444047445 is an apocalyptic number.

It is an amenable number.

1444047445 is a deficient number, since it is larger than the sum of its proper divisors (288809495).

1444047445 is an equidigital number, since it uses as much as digits as its factorization.

1444047445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288809494.

The product of its (nonzero) digits is 143360, while the sum is 37.

The square root of 1444047445 is about 38000.6242711880. The cubic root of 1444047445 is about 1130.3002426134.

The spelling of 1444047445 in words is "one billion, four hundred forty-four million, forty-seven thousand, four hundred forty-five".