1944885047 has 8 divisors (see below), whose sum is σ = 2224476576. Its totient is φ = 1665731232.

The previous prime is 1944885031. The next prime is 1944885073. The reversal of 1944885047 is 7405884491.

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 1944885047 - 2⁴ = 1944885031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1944884986 and 1944885004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944885077) 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, 99848 + ... + 117725.

It is an arithmetic number, because the mean of its divisors is an integer number (278059572).

Almost surely, 2^1944885047 is an apocalyptic number.

1944885047 is a deficient number, since it is larger than the sum of its proper divisors (279591529).

1944885047 is a wasteful number, since it uses less digits than its factorization.

1944885047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218857.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The square root of 1944885047 is about 44100.8508648076. The cubic root of 1944885047 is about 1248.2396655017.

The spelling of 1944885047 in words is "one billion, nine hundred forty-four million, eight hundred eighty-five thousand, forty-seven".