1944717938 has 16 divisors (see below), whose sum is σ = 2960665344. Its totient is φ = 957930480.

The previous prime is 1944717937. The next prime is 1944717949. The reversal of 1944717938 is 8397174491.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1944717938.

It is not an unprimeable number, because it can be changed into a prime (1944717937) 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, 13631 + ... + 63837.

It is an arithmetic number, because the mean of its divisors is an integer number (185041584).

Almost surely, 2^1944717938 is an apocalyptic number.

1944717938 is a deficient number, since it is larger than the sum of its proper divisors (1015947406).

1944717938 is a wasteful number, since it uses less digits than its factorization.

1944717938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50497.

The product of its digits is 1524096, while the sum is 53.

The square root of 1944717938 is about 44098.9562007991. The cubic root of 1944717938 is about 1248.2039139359.

The spelling of 1944717938 in words is "one billion, nine hundred forty-four million, seven hundred seventeen thousand, nine hundred thirty-eight".