1944688934 has 4 divisors (see below), whose sum is σ = 2917033404. Its totient is φ = 972344466.

The previous prime is 1944688927. The next prime is 1944688943. The reversal of 1944688934 is 4398864491.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1944688934.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 486172232 + ... + 486172235.

It is an arithmetic number, because the mean of its divisors is an integer number (729258351).

Almost surely, 2^1944688934 is an apocalyptic number.

1944688934 is a deficient number, since it is larger than the sum of its proper divisors (972344470).

1944688934 is an equidigital number, since it uses as much as digits as its factorization.

1944688934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972344469.

The product of its digits is 5971968, while the sum is 56.

The square root of 1944688934 is about 44098.6273482520. The cubic root of 1944688934 is about 1248.1977085654.

The spelling of 1944688934 in words is "one billion, nine hundred forty-four million, six hundred eighty-eight thousand, nine hundred thirty-four".