1444314643 has 4 divisors (see below), whose sum is σ = 1444402080. Its totient is φ = 1444227208.

The previous prime is 1444314541. The next prime is 1444314673. The reversal of 1444314643 is 3464134441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3464134441 = 113 ⋅30656057.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444314643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444314599 and 1444314608.

It is not an unprimeable number, because it can be changed into a prime (1444314673) 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, 10555 + ... + 54772.

It is an arithmetic number, because the mean of its divisors is an integer number (361100520).

Almost surely, 2^1444314643 is an apocalyptic number.

1444314643 is a deficient number, since it is larger than the sum of its proper divisors (87437).

1444314643 is an equidigital number, since it uses as much as digits as its factorization.

1444314643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87436.

The product of its digits is 55296, while the sum is 34.

The square root of 1444314643 is about 38004.1398139729. The cubic root of 1444314643 is about 1130.3699530050.

The spelling of 1444314643 in words is "one billion, four hundred forty-four million, three hundred fourteen thousand, six hundred forty-three".