1944845007 has 16 divisors (see below), whose sum is σ = 3026629632. Its totient is φ = 1087693920.

The previous prime is 1944844987. The next prime is 1944845011. The reversal of 1944845007 is 7005484491.

It is not a de Polignac number, because 1944845007 - 2⁸ = 1944844751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1944845007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944845057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984244 + ... + 986217.

It is an arithmetic number, because the mean of its divisors is an integer number (189164352).

Almost surely, 2^1944845007 is an apocalyptic number.

1944845007 is a deficient number, since it is larger than the sum of its proper divisors (1081784625).

1944845007 is a wasteful number, since it uses less digits than its factorization.

1944845007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970518.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1944845007 is about 44100.3969029758. The cubic root of 1944845007 is about 1248.2310994668.

It can be divided in two parts, 1944 and 845007, that added together give a triangular number (846951 = T₁₃₀₁).

The spelling of 1944845007 in words is "one billion, nine hundred forty-four million, eight hundred forty-five thousand, seven".