1444000019 has 16 divisors (see below), whose sum is σ = 1895066880. Its totient is φ = 1065972960.

The previous prime is 1444000003. The next prime is 1444000027. The reversal of 1444000019 is 9100004441.

It is not a de Polignac number, because 1444000019 - 2⁴ = 1444000003 is a prime.

It is a super-2 number, since 2×1444000019² = 4170272109744000722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1443999958 and 1444000003.

It is not an unprimeable number, because it can be changed into a prime (1444000049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492044 + ... + 494969.

It is an arithmetic number, because the mean of its divisors is an integer number (118441680).

Almost surely, 2^1444000019 is an apocalyptic number.

1444000019 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1444000019 is a deficient number, since it is larger than the sum of its proper divisors (451066861).

1444000019 is a wasteful number, since it uses less digits than its factorization.

1444000019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987050.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1444000019 is about 38000.0002500000. Note that the first 3 decimals coincide. The cubic root of 1444000019 is about 1130.2878685495.

The spelling of 1444000019 in words is "one billion, four hundred forty-four million, nineteen", and thus it is an aban number.