1995198072 has 64 divisors (see below), whose sum is σ = 5816928000. Its totient is φ = 570054240.

The previous prime is 1995198071. The next prime is 1995198083. The reversal of 1995198072 is 2708915991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995198071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112954 + ... + 129417.

It is an arithmetic number, because the mean of its divisors is an integer number (90889500).

Almost surely, 2^1995198072 is an apocalyptic number.

1995198072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1995198072 is an abundant number, since it is smaller than the sum of its proper divisors (3821729928).

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

1995198072 is a wasteful number, since it uses less digits than its factorization.

1995198072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242401 (or 242383 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 51.

The square root of 1995198072 is about 44667.6400988456. The cubic root of 1995198072 is about 1258.9119001248.

The spelling of 1995198072 in words is "one billion, nine hundred ninety-five million, one hundred ninety-eight thousand, seventy-two".