1944719849 has 8 divisors (see below), whose sum is σ = 1990709952. Its totient is φ = 1898764560.

The previous prime is 1944719801. The next prime is 1944719921. The reversal of 1944719849 is 9489174491.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1944719849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1944719794 and 1944719803.

It is not an unprimeable number, because it can be changed into a prime (1944719449) 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, 130127 + ... + 144299.

It is an arithmetic number, because the mean of its divisors is an integer number (248838744).

Almost surely, 2^1944719849 is an apocalyptic number.

It is an amenable number.

1944719849 is a deficient number, since it is larger than the sum of its proper divisors (45990103).

1944719849 is a wasteful number, since it uses less digits than its factorization.

1944719849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17407.

The product of its digits is 2612736, while the sum is 56.

The square root of 1944719849 is about 44098.9778679733. The cubic root of 1944719849 is about 1248.2043227899.

The spelling of 1944719849 in words is "one billion, nine hundred forty-four million, seven hundred nineteen thousand, eight hundred forty-nine".