1944147673 has 8 divisors (see below), whose sum is σ = 2103089408. Its totient is φ = 1786547664.

The previous prime is 1944147641. The next prime is 1944147713. The reversal of 1944147673 is 3767414491.

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

It is a cyclic number.

It is not a de Polignac number, because 1944147673 - 2⁵ = 1944147641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1944147613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332415 + ... + 338212.

It is an arithmetic number, because the mean of its divisors is an integer number (262886176).

Almost surely, 2^1944147673 is an apocalyptic number.

1944147673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1944147673 is a deficient number, since it is larger than the sum of its proper divisors (158941735).

1944147673 is a wasteful number, since it uses less digits than its factorization.

1944147673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670863.

The product of its digits is 508032, while the sum is 46.

The square root of 1944147673 is about 44092.4899841231. The cubic root of 1944147673 is about 1248.0818951111.

The spelling of 1944147673 in words is "one billion, nine hundred forty-four million, one hundred forty-seven thousand, six hundred seventy-three".