1944235668 has 48 divisors (see below), whose sum is σ = 4815586944. Its totient is φ = 608409600.

The previous prime is 1944235663. The next prime is 1944235687. The reversal of 1944235668 is 8665324491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944235663) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 69921 + ... + 93687.

It is an arithmetic number, because the mean of its divisors is an integer number (100324728).

Almost surely, 2^1944235668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1944235668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2407793472).

1944235668 is an abundant number, since it is smaller than the sum of its proper divisors (2871351276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1944235668 is a wasteful number, since it uses less digits than its factorization.

1944235668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24192 (or 24190 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 1944235668 is about 44093.4878184976. The cubic root of 1944235668 is about 1248.1007248380.

The spelling of 1944235668 in words is "one billion, nine hundred forty-four million, two hundred thirty-five thousand, six hundred sixty-eight".