1944871320 has 128 divisors (see below), whose sum is σ = 6716505600. Its totient is φ = 441317376.

The previous prime is 1944871307. The next prime is 1944871321. The reversal of 1944871320 is 231784491.

1944871320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944871321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108432 + ... + 125088.

It is an arithmetic number, because the mean of its divisors is an integer number (52472700).

Almost surely, 2^1944871320 is an apocalyptic number.

1944871320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1944871320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3358252800).

1944871320 is an abundant number, since it is smaller than the sum of its proper divisors (4771634280).

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

1944871320 is a wasteful number, since it uses less digits than its factorization.

1944871320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16817 (or 16813 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1944871320 is about 44100.6952326151. The cubic root of 1944871320 is about 1248.2367288026.

The spelling of 1944871320 in words is "one billion, nine hundred forty-four million, eight hundred seventy-one thousand, three hundred twenty".