1995743120 has 160 divisors (see below), whose sum is σ = 5598927360. Its totient is φ = 646778880.

The previous prime is 1995743081. The next prime is 1995743129. The reversal of 1995743120 is 213475991.

It is not an unprimeable number, because it can be changed into a prime (1995743129) 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, 1145450 + ... + 1147190.

It is an arithmetic number, because the mean of its divisors is an integer number (34993296).

Almost surely, 2^1995743120 is an apocalyptic number.

1995743120 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 1995743120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2799463680).

1995743120 is an abundant number, since it is smaller than the sum of its proper divisors (3603184240).

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

1995743120 is a wasteful number, since it uses less digits than its factorization.

1995743120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 1995743120 is about 44673.7408328427. The cubic root of 1995743120 is about 1259.0265261612.

The spelling of 1995743120 in words is "one billion, nine hundred ninety-five million, seven hundred forty-three thousand, one hundred twenty".